18083987364 has 12 divisors (see below), whose sum is σ = 42195970544. Its totient is φ = 6027995784.

The previous prime is 18083987357. The next prime is 18083987413. The reversal of 18083987364 is 46378938081.

It is a tau number, because it is divible by the number of its divisors (12).

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, 753499462 + ... + 753499485.

Almost surely, 2^18083987364 is an apocalyptic number.

It is an amenable number.

18083987364 is an abundant number, since it is smaller than the sum of its proper divisors (24111983180).

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

18083987364 is a wasteful number, since it uses less digits than its factorization.

18083987364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506998954 (or 1506998952 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 18083987364 in words is "eighteen billion, eighty-three million, nine hundred eighty-seven thousand, three hundred sixty-four".