18042264072 has 96 divisors (see below), whose sum is σ = 58273188480. Its totient is φ = 4930801920.

The previous prime is 18042264059. The next prime is 18042264113. The reversal of 18042264072 is 27046224081.

18042264072 is a `hidden beast` number, since 1 + 8 + 0 + 4 + 2 + 2 + 640 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 766629 + ... + 789812.

It is an arithmetic number, because the mean of its divisors is an integer number (607012380).

Almost surely, 2^18042264072 is an apocalyptic number.

18042264072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18042264072 is an abundant number, since it is smaller than the sum of its proper divisors (40230924408).

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

18042264072 is a wasteful number, since it uses less digits than its factorization.

18042264072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556483 (or 1556476 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 18042264072 in words is "eighteen billion, forty-two million, two hundred sixty-four thousand, seventy-two".