18700987372 has 12 divisors (see below), whose sum is σ = 32728136616. Its totient is φ = 9350091200.

The previous prime is 18700987339. The next prime is 18700987379. The reversal of 18700987372 is 27378900781.

It is not an unprimeable number, because it can be changed into a prime (18700987379) 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 3 ways as a sum of consecutive naturals, for example, 19983 + ... + 194425.

It is an arithmetic number, because the mean of its divisors is an integer number (2727344718).

Almost surely, 2^18700987372 is an apocalyptic number.

It is an amenable number.

18700987372 is a deficient number, since it is larger than the sum of its proper divisors (14027149244).

18700987372 is a wasteful number, since it uses less digits than its factorization.

18700987372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201248 (or 201246 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 18700987372 in words is "eighteen billion, seven hundred million, nine hundred eighty-seven thousand, three hundred seventy-two".