18061790264 has 16 divisors (see below), whose sum is σ = 38703836400. Its totient is φ = 7740767232.

The previous prime is 18061790239. The next prime is 18061790287. The reversal of 18061790264 is 46209716081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161265929 + ... + 161266040.

It is an arithmetic number, because the mean of its divisors is an integer number (2418989775).

Almost surely, 2^18061790264 is an apocalyptic number.

18061790264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18061790264 is an abundant number, since it is smaller than the sum of its proper divisors (20642046136).

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

18061790264 is a wasteful number, since it uses less digits than its factorization.

18061790264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322531982 (or 322531978 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 18061790264 in words is "eighteen billion, sixty-one million, seven hundred ninety thousand, two hundred sixty-four".