56681681474 has 16 divisors (see below), whose sum is σ = 93366098496. Its totient is φ = 25593774000.

The previous prime is 56681681471. The next prime is 56681681501. The reversal of 56681681474 is 47418618665.

56681681474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (56681681471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8527937 + ... + 8534580.

It is an arithmetic number, because the mean of its divisors is an integer number (5835381156).

Almost surely, 2^56681681474 is an apocalyptic number.

56681681474 is a deficient number, since it is larger than the sum of its proper divisors (36684417022).

56681681474 is a wasteful number, since it uses less digits than its factorization.

56681681474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17062681.

The product of its digits is 7741440, while the sum is 56.

The spelling of 56681681474 in words is "fifty-six billion, six hundred eighty-one million, six hundred eighty-one thousand, four hundred seventy-four".