56727689768 has 16 divisors (see below), whose sum is σ = 107460960180. Its totient is φ = 28071433728.

The previous prime is 56727689741. The next prime is 56727689783. The reversal of 56727689768 is 86798672765.

It can be written as a sum of positive squares in 2 ways, for example, as 56272379524 + 455310244 = 237218^2 + 21338^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36550571 + ... + 36552122.

Almost surely, 2^56727689768 is an apocalyptic number.

It is an amenable number.

56727689768 is a deficient number, since it is larger than the sum of its proper divisors (50733270412).

56727689768 is a wasteful number, since it uses less digits than its factorization.

56727689768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73102796 (or 73102792 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 71.

The spelling of 56727689768 in words is "fifty-six billion, seven hundred twenty-seven million, six hundred eighty-nine thousand, seven hundred sixty-eight".