56713997878 has 8 divisors (see below), whose sum is σ = 85072632480. Its totient is φ = 28356453720.

The previous prime is 56713997833. The next prime is 56713997897. The reversal of 56713997878 is 87879931765.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127038 + ... + 359953.

It is an arithmetic number, because the mean of its divisors is an integer number (10634079060).

Almost surely, 2^56713997878 is an apocalyptic number.

56713997878 is a deficient number, since it is larger than the sum of its proper divisors (28358634602).

56713997878 is a wasteful number, since it uses less digits than its factorization.

56713997878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545222.

The product of its digits is 160030080, while the sum is 70.

The spelling of 56713997878 in words is "fifty-six billion, seven hundred thirteen million, nine hundred ninety-seven thousand, eight hundred seventy-eight".