18097182912 has 56 divisors (see below), whose sum is σ = 48375809776. Its totient is φ = 5970198528.

The previous prime is 18097182899. The next prime is 18097182913. The reversal of 18097182912 is 21928179081.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (18097182913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467233 + ... + 504480.

It is an arithmetic number, because the mean of its divisors is an integer number (863853746).

Almost surely, 2^18097182912 is an apocalyptic number.

18097182912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18097182912 is an abundant number, since it is smaller than the sum of its proper divisors (30278626864).

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

18097182912 is an equidigital number, since it uses as much as digits as its factorization.

18097182912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971825 (or 971815 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 48.

The spelling of 18097182912 in words is "eighteen billion, ninety-seven million, one hundred eighty-two thousand, nine hundred twelve".