18189760432 has 20 divisors (see below), whose sum is σ = 35244775936. Its totient is φ = 9094334400.

The previous prime is 18189760417. The next prime is 18189760469. The reversal of 18189760432 is 23406798181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443182 + ... + 482482.

Almost surely, 2^18189760432 is an apocalyptic number.

It is an amenable number.

18189760432 is a deficient number, since it is larger than the sum of its proper divisors (17055015504).

18189760432 is a wasteful number, since it uses less digits than its factorization.

18189760432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68236 (or 68230 counting only the distinct ones).

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

The spelling of 18189760432 in words is "eighteen billion, one hundred eighty-nine million, seven hundred sixty thousand, four hundred thirty-two".