56877897984 has 36 divisors (see below), whose sum is σ = 151378157616. Its totient is φ = 18959299072.

The previous prime is 56877897949. The next prime is 56877897997. The reversal of 56877897984 is 48979877865.

56877897984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56877897984² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37029114 + ... + 37030649.

Almost surely, 2^56877897984 is an apocalyptic number.

It is an amenable number.

56877897984 is an abundant number, since it is smaller than the sum of its proper divisors (94500259632).

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

56877897984 is an equidigital number, since it uses as much as digits as its factorization.

56877897984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74059782 (or 74059768 counting only the distinct ones).

The product of its digits is 1706987520, while the sum is 78.

The spelling of 56877897984 in words is "fifty-six billion, eight hundred seventy-seven million, eight hundred ninety-seven thousand, nine hundred eighty-four".