18108275965924 has 9 divisors (see below), whose sum is σ = 31689497834211. Its totient is φ = 9054133727580.

The previous prime is 18108275965877. The next prime is 18108275965963. The reversal of 18108275965924 is 42956957280181.

The square root of 18108275965924 is 4255382.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18108275965924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7446919 + ... + 9574609.

Almost surely, 2^{18108275965924} is an apocalyptic number.

18108275965924 is the 4255382-nd square number.

It is an amenable number.

18108275965924 is a deficient number, since it is larger than the sum of its proper divisors (13581221868287).

18108275965924 is an frugal number, since it uses more digits than its factorization.

18108275965924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255386 (or 2127693 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 67.

The spelling of 18108275965924 in words is "eighteen trillion, one hundred eight billion, two hundred seventy-five million, nine hundred sixty-five thousand, nine hundred twenty-four".