56387936319 has 32 divisors (see below), whose sum is σ = 88463660544. Its totient is φ = 31497233280.

The previous prime is 56387936309. The next prime is 56387936321. The reversal of 56387936319 is 91363978365.

It is not a de Polignac number, because 56387936319 - 2⁵ = 56387936287 is a prime.

It is a super-2 number, since 2×56387936319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56387936309) 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 31 ways as a sum of consecutive naturals, for example, 179494 + ... + 380780.

It is an arithmetic number, because the mean of its divisors is an integer number (2764489392).

Almost surely, 2^56387936319 is an apocalyptic number.

56387936319 is a deficient number, since it is larger than the sum of its proper divisors (32075724225).

56387936319 is a wasteful number, since it uses less digits than its factorization.

56387936319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201967.

The product of its digits is 22044960, while the sum is 60.

The spelling of 56387936319 in words is "fifty-six billion, three hundred eighty-seven million, nine hundred thirty-six thousand, three hundred nineteen".