18731473192936 has 32 divisors (see below), whose sum is σ = 40306816224000. Its totient is φ = 7994185206336.

The previous prime is 18731473192841. The next prime is 18731473192937. The reversal of 18731473192936 is 63929137413781.

It is not an unprimeable number, because it can be changed into a prime (18731473192937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699757731 + ... + 699784498.

It is an arithmetic number, because the mean of its divisors is an integer number (1259588007000).

Almost surely, 2^{18731473192936} is an apocalyptic number.

It is an amenable number.

18731473192936 is an abundant number, since it is smaller than the sum of its proper divisors (21575343031064).

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

18731473192936 is a wasteful number, since it uses less digits than its factorization.

18731473192936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399542481 (or 1399542477 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 64.

The spelling of 18731473192936 in words is "eighteen trillion, seven hundred thirty-one billion, four hundred seventy-three million, one hundred ninety-two thousand, nine hundred thirty-six".