56864768687 has 16 divisors (see below), whose sum is σ = 58921371648. Its totient is φ = 54822462240.

The previous prime is 56864768671. The next prime is 56864768693. The reversal of 56864768687 is 78686746865.

It is a cyclic number.

It is not a de Polignac number, because 56864768687 - 2⁴ = 56864768671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56864768687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56864768627) 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, 10200833 + ... + 10206405.

It is an arithmetic number, because the mean of its divisors is an integer number (3682585728).

Almost surely, 2^56864768687 is an apocalyptic number.

56864768687 is a deficient number, since it is larger than the sum of its proper divisors (2056602961).

56864768687 is a wasteful number, since it uses less digits than its factorization.

56864768687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790.

The product of its digits is 650280960, while the sum is 71.

The spelling of 56864768687 in words is "fifty-six billion, eight hundred sixty-four million, seven hundred sixty-eight thousand, six hundred eighty-seven".