18267281120 has 48 divisors (see below), whose sum is σ = 47079769968. Its totient is φ = 6642647040.

The previous prime is 18267281107. The next prime is 18267281147. The reversal of 18267281120 is 2118276281.

It is a congruent number.

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, 5187809 + ... + 5191328.

It is an arithmetic number, because the mean of its divisors is an integer number (980828541).

Almost surely, 2^18267281120 is an apocalyptic number.

18267281120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18267281120 is an abundant number, since it is smaller than the sum of its proper divisors (28812488848).

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

18267281120 is a wasteful number, since it uses less digits than its factorization.

18267281120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10379163 (or 10379155 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The spelling of 18267281120 in words is "eighteen billion, two hundred sixty-seven million, two hundred eighty-one thousand, one hundred twenty".