18731428876 has 12 divisors (see below), whose sum is σ = 32809198072. Its totient is φ = 9357372288.

The previous prime is 18731428829. The next prime is 18731428907. The reversal of 18731428876 is 67882413781.

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, 2080485 + ... + 2089468.

Almost surely, 2^18731428876 is an apocalyptic number.

It is an amenable number.

18731428876 is a deficient number, since it is larger than the sum of its proper divisors (14077769196).

18731428876 is a wasteful number, since it uses less digits than its factorization.

18731428876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171080 (or 4171078 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The spelling of 18731428876 in words is "eighteen billion, seven hundred thirty-one million, four hundred twenty-eight thousand, eight hundred seventy-six".