18838596738 has 16 divisors (see below), whose sum is σ = 40575439296. Its totient is φ = 5796491280.

The previous prime is 18838596727. The next prime is 18838596757. The reversal of 18838596738 is 83769583881.

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, 120760158 + ... + 120760313.

It is an arithmetic number, because the mean of its divisors is an integer number (2535964956).

Almost surely, 2^18838596738 is an apocalyptic number.

18838596738 is an abundant number, since it is smaller than the sum of its proper divisors (21736842558).

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

18838596738 is a wasteful number, since it uses less digits than its factorization.

18838596738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241520489.

The product of its digits is 69672960, while the sum is 66.

The spelling of 18838596738 in words is "eighteen billion, eight hundred thirty-eight million, five hundred ninety-six thousand, seven hundred thirty-eight".