56688531394 has 32 divisors (see below), whose sum is σ = 94740684480. Its totient is φ = 25221926400.

The previous prime is 56688531391. The next prime is 56688531401. The reversal of 56688531394 is 49313588665.

It is not an unprimeable number, because it can be changed into a prime (56688531391) 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 15 ways as a sum of consecutive naturals, for example, 208714 + ... + 396154.

It is an arithmetic number, because the mean of its divisors is an integer number (2960646390).

Almost surely, 2^56688531394 is an apocalyptic number.

56688531394 is a deficient number, since it is larger than the sum of its proper divisors (38052153086).

56688531394 is a wasteful number, since it uses less digits than its factorization.

56688531394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187746.

The product of its digits is 18662400, while the sum is 58.

The spelling of 56688531394 in words is "fifty-six billion, six hundred eighty-eight million, five hundred thirty-one thousand, three hundred ninety-four".