21757974856088 has 32 divisors (see below), whose sum is σ = 42330407468160. Its totient is φ = 10473502832640.

The previous prime is 21757974856027. The next prime is 21757974856097. The reversal of 21757974856088 is 88065847975712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227241695 + ... + 227337422.

It is an arithmetic number, because the mean of its divisors is an integer number (1322825233380).

Almost surely, 2^{21757974856088} is an apocalyptic number.

It is an amenable number.

21757974856088 is a deficient number, since it is larger than the sum of its proper divisors (20572432612072).

21757974856088 is a wasteful number, since it uses less digits than its factorization.

21757974856088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454579347 (or 454579343 counting only the distinct ones).

The product of its (nonzero) digits is 1896652800, while the sum is 77.

The spelling of 21757974856088 in words is "twenty-one trillion, seven hundred fifty-seven billion, nine hundred seventy-four million, eight hundred fifty-six thousand, eighty-eight".