18305911074 has 16 divisors (see below), whose sum is σ = 39940169760. Its totient is φ = 5547245760.

The previous prime is 18305911037. The next prime is 18305911081. The reversal of 18305911074 is 47011950381.

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, 138681079 + ... + 138681210.

It is an arithmetic number, because the mean of its divisors is an integer number (2496260610).

Almost surely, 2^18305911074 is an apocalyptic number.

18305911074 is an abundant number, since it is smaller than the sum of its proper divisors (21634258686).

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

18305911074 is a wasteful number, since it uses less digits than its factorization.

18305911074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277362305.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 18305911074 in words is "eighteen billion, three hundred five million, nine hundred eleven thousand, seventy-four".