18325974716 has 36 divisors (see below), whose sum is σ = 37466655408. Its totient is φ = 7820261568.

The previous prime is 18325974703. The next prime is 18325974761. The reversal of 18325974716 is 61747952381.

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, 154976 + ... + 246311.

It is an arithmetic number, because the mean of its divisors is an integer number (1040740428).

Almost surely, 2^18325974716 is an apocalyptic number.

It is an amenable number.

18325974716 is an abundant number, since it is smaller than the sum of its proper divisors (19140680692).

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

18325974716 is a wasteful number, since it uses less digits than its factorization.

18325974716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401538 (or 401529 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The spelling of 18325974716 in words is "eighteen billion, three hundred twenty-five million, nine hundred seventy-four thousand, seven hundred sixteen".