18111325764 has 48 divisors (see below), whose sum is σ = 48593205248. Its totient is φ = 5142914208.

The previous prime is 18111325759. The next prime is 18111325783. The reversal of 18111325764 is 46752311181.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647692 + ... + 675075.

Almost surely, 2^18111325764 is an apocalyptic number.

18111325764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18111325764 is an abundant number, since it is smaller than the sum of its proper divisors (30481879484).

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

18111325764 is a wasteful number, since it uses less digits than its factorization.

18111325764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322944 (or 1322942 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The spelling of 18111325764 in words is "eighteen billion, one hundred eleven million, three hundred twenty-five thousand, seven hundred sixty-four".