56577712678 has 4 divisors (see below), whose sum is σ = 84866569020. Its totient is φ = 28288856338.

The previous prime is 56577712649. The next prime is 56577712721. The reversal of 56577712678 is 87621777565.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14144428168 + ... + 14144428171.

It is an arithmetic number, because the mean of its divisors is an integer number (21216642255).

Almost surely, 2^56577712678 is an apocalyptic number.

56577712678 is a deficient number, since it is larger than the sum of its proper divisors (28288856342).

56577712678 is a wasteful number, since it uses less digits than its factorization.

56577712678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28288856341.

The product of its digits is 34574400, while the sum is 61.

The spelling of 56577712678 in words is "fifty-six billion, five hundred seventy-seven million, seven hundred twelve thousand, six hundred seventy-eight".