18392965868 has 12 divisors (see below), whose sum is σ = 32190709320. Its totient is φ = 9195620352.

The previous prime is 18392965861. The next prime is 18392965879. The reversal of 18392965868 is 86856929381.

It is not an unprimeable number, because it can be changed into a prime (18392965861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166421 + ... + 253932.

It is an arithmetic number, because the mean of its divisors is an integer number (2682559110).

Almost surely, 2^18392965868 is an apocalyptic number.

It is an amenable number.

18392965868 is a deficient number, since it is larger than the sum of its proper divisors (13797743452).

18392965868 is a wasteful number, since it uses less digits than its factorization.

18392965868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431296 (or 431294 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 65.

The spelling of 18392965868 in words is "eighteen billion, three hundred ninety-two million, nine hundred sixty-five thousand, eight hundred sixty-eight".