18018288325 has 12 divisors (see below), whose sum is σ = 22348500160. Its totient is φ = 14410874160.

The previous prime is 18018288311. The next prime is 18018288367. The reversal of 18018288325 is 52388281081.

It is not a de Polignac number, because 18018288325 - 2⁵ = 18018288293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6022 + ... + 189928.

Almost surely, 2^18018288325 is an apocalyptic number.

It is an amenable number.

18018288325 is a deficient number, since it is larger than the sum of its proper divisors (4330211835).

18018288325 is a wasteful number, since it uses less digits than its factorization.

18018288325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187836 (or 187831 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 46.

The spelling of 18018288325 in words is "eighteen billion, eighteen million, two hundred eighty-eight thousand, three hundred twenty-five".