56637678871 has 8 divisors (see below), whose sum is σ = 59441810400. Its totient is φ = 53862016032.

The previous prime is 56637678863. The next prime is 56637678887. The reversal of 56637678871 is 17887673665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56637678871 - 2³ = 56637678863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56637678821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7113096 + ... + 7121053.

It is an arithmetic number, because the mean of its divisors is an integer number (7430226300).

Almost surely, 2^56637678871 is an apocalyptic number.

56637678871 is a deficient number, since it is larger than the sum of its proper divisors (2804131529).

56637678871 is a wasteful number, since it uses less digits than its factorization.

56637678871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234345.

The product of its digits is 71124480, while the sum is 64.

The spelling of 56637678871 in words is "fifty-six billion, six hundred thirty-seven million, six hundred seventy-eight thousand, eight hundred seventy-one".