18304518336 has 56 divisors (see below), whose sum is σ = 52156150704. Its totient is φ = 5632158720.

The previous prime is 18304518311. The next prime is 18304518343. The reversal of 18304518336 is 63381540381.

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, 3664275 + ... + 3669266.

It is an arithmetic number, because the mean of its divisors is an integer number (931359834).

Almost surely, 2^18304518336 is an apocalyptic number.

18304518336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18304518336 is an abundant number, since it is smaller than the sum of its proper divisors (33851632368).

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

18304518336 is a wasteful number, since it uses less digits than its factorization.

18304518336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333569 (or 7333559 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 18304518336 in words is "eighteen billion, three hundred four million, five hundred eighteen thousand, three hundred thirty-six".