56887861513 has 16 divisors (see below), whose sum is σ = 67300882560. Its totient is φ = 47048601600.

The previous prime is 56887861507. The next prime is 56887861529. The reversal of 56887861513 is 31516878865.

It is a de Polignac number, because none of the positive numbers 2^k-56887861513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56887861573) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 219273 + ... + 402313.

It is an arithmetic number, because the mean of its divisors is an integer number (4206305160).

Almost surely, 2^56887861513 is an apocalyptic number.

It is an amenable number.

56887861513 is a deficient number, since it is larger than the sum of its proper divisors (10413021047).

56887861513 is a wasteful number, since it uses less digits than its factorization.

56887861513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184608.

The product of its digits is 9676800, while the sum is 58.

The spelling of 56887861513 in words is "fifty-six billion, eight hundred eighty-seven million, eight hundred sixty-one thousand, five hundred thirteen".