56856181678 has 8 divisors (see below), whose sum is σ = 86242523040. Its totient is φ = 28108674000.

The previous prime is 56856181667. The next prime is 56856181717. The reversal of 56856181678 is 87618165865.

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, 159708198 + ... + 159708553.

It is an arithmetic number, because the mean of its divisors is an integer number (10780315380).

Almost surely, 2^56856181678 is an apocalyptic number.

56856181678 is a deficient number, since it is larger than the sum of its proper divisors (29386341362).

56856181678 is a wasteful number, since it uses less digits than its factorization.

56856181678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319416842.

The product of its digits is 19353600, while the sum is 61.

The spelling of 56856181678 in words is "fifty-six billion, eight hundred fifty-six million, one hundred eighty-one thousand, six hundred seventy-eight".