18931314996 has 72 divisors (see below), whose sum is σ = 54474323904. Its totient is φ = 5487335040.

The previous prime is 18931314967. The next prime is 18931315009. The reversal of 18931314996 is 69941313981.

18931314996 is a `hidden beast` number, since 18 + 9 + 3 + 131 + 499 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1030161 + ... + 1048376.

It is an arithmetic number, because the mean of its divisors is an integer number (756587832).

Almost surely, 2^18931314996 is an apocalyptic number.

It is an amenable number.

18931314996 is an abundant number, since it is smaller than the sum of its proper divisors (35543008908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18931314996 is a wasteful number, since it uses less digits than its factorization.

18931314996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078581 (or 2078576 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 18931314996 in words is "eighteen billion, nine hundred thirty-one million, three hundred fourteen thousand, nine hundred ninety-six".