18267932994 has 16 divisors (see below), whose sum is σ = 36542378880. Its totient is φ = 6088225520.

The previous prime is 18267932987. The next prime is 18267933023. The reversal of 18267932994 is 49923976281.

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, 234522 + ... + 302549.

It is an arithmetic number, because the mean of its divisors is an integer number (2283898680).

Almost surely, 2^18267932994 is an apocalyptic number.

18267932994 is an abundant number, since it is smaller than the sum of its proper divisors (18274445886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18267932994 is a wasteful number, since it uses less digits than its factorization.

18267932994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542745.

The product of its digits is 11757312, while the sum is 60.

The spelling of 18267932994 in words is "eighteen billion, two hundred sixty-seven million, nine hundred thirty-two thousand, nine hundred ninety-four".