56581928878 has 8 divisors (see below), whose sum is σ = 84883159872. Its totient is φ = 28287542256.

The previous prime is 56581928863. The next prime is 56581928917. The reversal of 56581928878 is 87882918565.

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, 1690375 + ... + 1723522.

It is an arithmetic number, because the mean of its divisors is an integer number (10610394984).

Almost surely, 2^56581928878 is an apocalyptic number.

56581928878 is a deficient number, since it is larger than the sum of its proper divisors (28301230994).

56581928878 is a wasteful number, since it uses less digits than its factorization.

56581928878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422186.

The product of its digits is 77414400, while the sum is 67.

The spelling of 56581928878 in words is "fifty-six billion, five hundred eighty-one million, nine hundred twenty-eight thousand, eight hundred seventy-eight".