56987874029377 has 16 divisors (see below), whose sum is σ = 60366007734480. Its totient is φ = 53612622379008.

The previous prime is 56987874029371. The next prime is 56987874029447. The reversal of 56987874029377 is 77392047878965.

It can be written as a sum of positive squares in 8 ways, for example, as 12270420503056 + 44717453526321 = 3502916^2 + 6687111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56987874029377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56987874029377.

It is not an unprimeable number, because it can be changed into a prime (56987874029371) 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, 573909949 + ... + 574009237.

It is an arithmetic number, because the mean of its divisors is an integer number (3772875483405).

Almost surely, 2^{56987874029377} is an apocalyptic number.

It is an amenable number.

56987874029377 is a deficient number, since it is larger than the sum of its proper divisors (3378133705103).

56987874029377 is a wasteful number, since it uses less digits than its factorization.

56987874029377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113460.

The product of its (nonzero) digits is 8961684480, while the sum is 82.

The spelling of 56987874029377 in words is "fifty-six trillion, nine hundred eighty-seven billion, eight hundred seventy-four million, twenty-nine thousand, three hundred seventy-seven".