18836668522 has 16 divisors (see below), whose sum is σ = 32298998400. Its totient is φ = 8070966288.

The previous prime is 18836668519. The next prime is 18836668549. The reversal of 18836668522 is 22586663881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94897 + ... + 216052.

It is an arithmetic number, because the mean of its divisors is an integer number (2018687400).

Almost surely, 2^18836668522 is an apocalyptic number.

18836668522 is a deficient number, since it is larger than the sum of its proper divisors (13462329878).

18836668522 is a wasteful number, since it uses less digits than its factorization.

18836668522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315285.

The product of its digits is 6635520, while the sum is 55.

The spelling of 18836668522 in words is "eighteen billion, eight hundred thirty-six million, six hundred sixty-eight thousand, five hundred twenty-two".