56697773364 has 24 divisors (see below), whose sum is σ = 146994227520. Its totient is φ = 18899257752.

The previous prime is 56697773311. The next prime is 56697773369. The reversal of 56697773364 is 46337779665.

56697773364 is a `hidden beast` number, since 566 + 9 + 7 + 7 + 7 + 3 + 3 + 64 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56697773369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262489584 + ... + 262489799.

It is an arithmetic number, because the mean of its divisors is an integer number (6124759480).

Almost surely, 2^56697773364 is an apocalyptic number.

56697773364 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56697773364 is an abundant number, since it is smaller than the sum of its proper divisors (90296454156).

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

56697773364 is a wasteful number, since it uses less digits than its factorization.

56697773364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524979396 (or 524979388 counting only the distinct ones).

The product of its digits is 120022560, while the sum is 63.

The spelling of 56697773364 in words is "fifty-six billion, six hundred ninety-seven million, seven hundred seventy-three thousand, three hundred sixty-four".