56685111790 has 16 divisors (see below), whose sum is σ = 102567409920. Its totient is φ = 22555331680.

The previous prime is 56685111779. The next prime is 56685111799. The reversal of 56685111790 is 9711158665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56685111799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14837125 + ... + 14840944.

It is an arithmetic number, because the mean of its divisors is an integer number (6410463120).

Almost surely, 2^56685111790 is an apocalyptic number.

56685111790 is a deficient number, since it is larger than the sum of its proper divisors (45882298130).

56685111790 is a wasteful number, since it uses less digits than its factorization.

56685111790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29678267.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 56685111790 in words is "fifty-six billion, six hundred eighty-five million, one hundred eleven thousand, seven hundred ninety".