18682977333872 has 20 divisors (see below), whose sum is σ = 36203961228240. Its totient is φ = 9340019597568.

The previous prime is 18682977333821. The next prime is 18682977334039. The reversal of 18682977333872 is 27833377928681.

It is a self number, because there is not a number n which added to its sum of digits gives 18682977333872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91711913 + ... + 91915400.

It is an arithmetic number, because the mean of its divisors is an integer number (1810198061412).

Almost surely, 2^{18682977333872} is an apocalyptic number.

It is an amenable number.

18682977333872 is a deficient number, since it is larger than the sum of its proper divisors (17520983894368).

18682977333872 is a wasteful number, since it uses less digits than its factorization.

18682977333872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183633680 (or 183633674 counting only the distinct ones).

The product of its digits is 1024192512, while the sum is 74.

The spelling of 18682977333872 in words is "eighteen trillion, six hundred eighty-two billion, nine hundred seventy-seven million, three hundred thirty-three thousand, eight hundred seventy-two".