export declare type Options = OptionsCardinal & OptionsIllion;
export declare type OptionsCardinal = {
    /** The number of groups to output, each group consists of three digits. */
    groups?: number;
    /** Use numbers instead of words for the group value, the group name is still output as text */
    digits?: boolean;
};
export declare type OptionsIllion = {
    /** Word to place after the hundreds.  "one hundred and one" vs. "one hundred one" */
    and?: string;
    /** Places a character between the tens units and the ones units.  "twenty-one" vs. "twenty one" */
    hyphen?: string;
};
/**
 * Convert a number into text (the cardinal number)
 *
 * @remark There is no limit to the numbers that can be expressed, however Javascript/Typescript can only represent numbers
 * up to uncentillions (1e308).
 *
 * @param input The number
 * @param __namedParameters see {@link Options}
 * @returns The number spelled out
 *
 * @default groups Infinity
 * @default digits false
 * @default and (empty)
 * @default hyphen (space)
 */
export declare function cardinal(input: number, { groups, digits, ...options }?: Options): string;
/**
 * Get the spelled out word for an exponent
 *
 * @remarks This is only using the exponent, There is no limit to the numbers this function can represents, however Javascript/Typescript can only represent
 * numbers up to 1e308, which limits the numbers that this method can represent to 10^10^308 which is really really big.
 *
 * @example 6 is "million"
 * @example 303 is "centillion"
 * @param exponent The exponent to convert
 * @returns Order of Magnitude as text
 */
export declare function orderOfMagnitude(exponent: number): string | null;
/**
 * Get a short description of a number
 *
 * @remarks this is a shortcut to calling cardinal with options {groups: 1, digits: true}
 *
 * @example 1000000 "1 million"
 * @example 101323847382459 "101 trillion"
 *
 * @param input number to convert
 * @param options see {@link OptionsIllion}
 * @return number as text
 */
export declare function summarize(input: number, options?: OptionsIllion): string;
export default cardinal;