56997679968 has 96 divisors (see below), whose sum is σ = 176022292320. Its totient is φ = 17881620480.

The previous prime is 56997679961. The next prime is 56997679979. The reversal of 56997679968 is 86997679965.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56997679961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1925593 + ... + 1954968.

It is an arithmetic number, because the mean of its divisors is an integer number (1833565545).

Almost surely, 2^56997679968 is an apocalyptic number.

It is an amenable number.

56997679968 is an abundant number, since it is smaller than the sum of its proper divisors (119024612352).

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

56997679968 is a wasteful number, since it uses less digits than its factorization.

56997679968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880597 (or 3880583 counting only the distinct ones).

The product of its digits is 2777664960, while the sum is 81.

The spelling of 56997679968 in words is "fifty-six billion, nine hundred ninety-seven million, six hundred seventy-nine thousand, nine hundred sixty-eight".