18796866894 has 24 divisors (see below), whose sum is σ = 43859356632. Its totient is φ = 5783651280.

The previous prime is 18796866883. The next prime is 18796866911. The reversal of 18796866894 is 49866869781.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40164012 + ... + 40164479.

It is an arithmetic number, because the mean of its divisors is an integer number (1827473193).

Almost surely, 2^18796866894 is an apocalyptic number.

18796866894 is an abundant number, since it is smaller than the sum of its proper divisors (25062489738).

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

18796866894 is a wasteful number, since it uses less digits than its factorization.

18796866894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80328512 (or 80328509 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 72.

The spelling of 18796866894 in words is "eighteen billion, seven hundred ninety-six million, eight hundred sixty-six thousand, eight hundred ninety-four".