18306874192 has 10 divisors (see below), whose sum is σ = 35469568778. Its totient is φ = 9153437088.

The previous prime is 18306874189. The next prime is 18306874217. The reversal of 18306874192 is 29147860381.

It can be written as a sum of positive squares in only one way, i.e., 18035415616 + 271458576 = 134296^2 + 16476^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572089803 + ... + 572089834.

Almost surely, 2^18306874192 is an apocalyptic number.

It is an amenable number.

18306874192 is a deficient number, since it is larger than the sum of its proper divisors (17162694586).

18306874192 is a wasteful number, since it uses less digits than its factorization.

18306874192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144179645 (or 1144179639 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 18306874192 in words is "eighteen billion, three hundred six million, eight hundred seventy-four thousand, one hundred ninety-two".