56678973636 has 24 divisors (see below), whose sum is σ = 132292838944. Its totient is φ = 18887005440.

The previous prime is 56678973629. The next prime is 56678973667. The reversal of 56678973636 is 63637987665.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708685 + ... + 784596.

Almost surely, 2^56678973636 is an apocalyptic number.

It is an amenable number.

56678973636 is an abundant number, since it is smaller than the sum of its proper divisors (75613865308).

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

56678973636 is a wasteful number, since it uses less digits than its factorization.

56678973636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496451 (or 1496449 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 66.

The spelling of 56678973636 in words is "fifty-six billion, six hundred seventy-eight million, nine hundred seventy-three thousand, six hundred thirty-six".