18373748392 has 8 divisors (see below), whose sum is σ = 34450778250. Its totient is φ = 9186874192.

The previous prime is 18373748321. The next prime is 18373748411. The reversal of 18373748392 is 29384737381.

It can be written as a sum of positive squares in only one way, i.e., 17520757956 + 852990436 = 132366^2 + 29206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1148359267 + ... + 1148359282.

Almost surely, 2^18373748392 is an apocalyptic number.

It is an amenable number.

18373748392 is a deficient number, since it is larger than the sum of its proper divisors (16077029858).

18373748392 is a wasteful number, since it uses less digits than its factorization.

18373748392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296718555 (or 2296718551 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 55.

The spelling of 18373748392 in words is "eighteen billion, three hundred seventy-three million, seven hundred forty-eight thousand, three hundred ninety-two".