21089413314960 has 80 divisors (see below), whose sum is σ = 68818085568960. Its totient is φ = 5327851783680.

The previous prime is 21089413314899. The next prime is 21089413314971. The reversal of 21089413314960 is 6941331498012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2312431111 + ... + 2312440230.

It is an arithmetic number, because the mean of its divisors is an integer number (860226069612).

Almost surely, 2^{21089413314960} is an apocalyptic number.

21089413314960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21089413314960 is an abundant number, since it is smaller than the sum of its proper divisors (47728672254000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21089413314960 is a wasteful number, since it uses less digits than its factorization.

21089413314960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624871376 (or 4624871370 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 21089413314960 in words is "twenty-one trillion, eighty-nine billion, four hundred thirteen million, three hundred fourteen thousand, nine hundred sixty".