108931942564 has 12 divisors (see below), whose sum is σ = 190763938764. Its totient is φ = 54427960064.

The previous prime is 108931942523. The next prime is 108931942583. The reversal of 108931942564 is 465249139801.

It can be written as a sum of positive squares in 2 ways, for example, as 47729140900 + 61202801664 = 218470^2 + 247392^2 .

It is a super-2 number, since 2×108931942564² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9496357 + ... + 9507820.

It is an arithmetic number, because the mean of its divisors is an integer number (15896994897).

Almost surely, 2^108931942564 is an apocalyptic number.

It is an amenable number.

108931942564 is a deficient number, since it is larger than the sum of its proper divisors (81831996200).

108931942564 is a wasteful number, since it uses less digits than its factorization.

108931942564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19005614 (or 19005612 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 108931942564 in words is "one hundred eight billion, nine hundred thirty-one million, nine hundred forty-two thousand, five hundred sixty-four".