18316648364 has 48 divisors (see below), whose sum is σ = 37257782016. Its totient is φ = 7716340800.

The previous prime is 18316648349. The next prime is 18316648393. The reversal of 18316648364 is 46384661381.

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, 4047407 + ... + 4051929.

It is an arithmetic number, because the mean of its divisors is an integer number (776203792).

Almost surely, 2^18316648364 is an apocalyptic number.

18316648364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18316648364 is an abundant number, since it is smaller than the sum of its proper divisors (18941133652).

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

18316648364 is a wasteful number, since it uses less digits than its factorization.

18316648364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966 (or 6964 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The spelling of 18316648364 in words is "eighteen billion, three hundred sixteen million, six hundred forty-eight thousand, three hundred sixty-four".