56109420812 has 12 divisors (see below), whose sum is σ = 98195340096. Its totient is φ = 28053609360.

The previous prime is 56109420799. The next prime is 56109420833. The reversal of 56109420812 is 21802490165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154739 + ... + 369002.

It is an arithmetic number, because the mean of its divisors is an integer number (8182945008).

Almost surely, 2^56109420812 is an apocalyptic number.

It is an amenable number.

56109420812 is a deficient number, since it is larger than the sum of its proper divisors (42085919284).

56109420812 is a wasteful number, since it uses less digits than its factorization.

56109420812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550528 (or 550526 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 56109420812 in words is "fifty-six billion, one hundred nine million, four hundred twenty thousand, eight hundred twelve".