18287440074 has 48 divisors (see below), whose sum is σ = 41726018880. Its totient is φ = 5772513600.

The previous prime is 18287440037. The next prime is 18287440097. The reversal of 18287440074 is 47004478281.

It is a super-2 number, since 2×18287440074² (a number of 21 digits) contains 22 as substring.

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, 895174 + ... + 915374.

It is an arithmetic number, because the mean of its divisors is an integer number (869292060).

Almost surely, 2^18287440074 is an apocalyptic number.

18287440074 is an abundant number, since it is smaller than the sum of its proper divisors (23438578806).

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

18287440074 is a wasteful number, since it uses less digits than its factorization.

18287440074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22875 (or 22872 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The spelling of 18287440074 in words is "eighteen billion, two hundred eighty-seven million, four hundred forty thousand, seventy-four".