18389975192 has 32 divisors (see below), whose sum is σ = 35143379280. Its totient is φ = 9018522240.

The previous prime is 18389975173. The next prime is 18389975203. The reversal of 18389975192 is 29157998381.

It is a congruent number.

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, 1844942 + ... + 1854882.

Almost surely, 2^18389975192 is an apocalyptic number.

It is an amenable number.

18389975192 is a deficient number, since it is larger than the sum of its proper divisors (16753404088).

18389975192 is a wasteful number, since it uses less digits than its factorization.

18389975192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14363 (or 14359 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 62.

The spelling of 18389975192 in words is "eighteen billion, three hundred eighty-nine million, nine hundred seventy-five thousand, one hundred ninety-two".