18683248172 has 18 divisors (see below), whose sum is σ = 33006247092. Its totient is φ = 9252918504.

The previous prime is 18683248163. The next prime is 18683248187. The reversal of 18683248172 is 27184238681.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18683248172.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2824493 + ... + 2831099.

It is an arithmetic number, because the mean of its divisors is an integer number (1833680394).

Almost surely, 2^18683248172 is an apocalyptic number.

It is an amenable number.

18683248172 is a deficient number, since it is larger than the sum of its proper divisors (14322998920).

18683248172 is an frugal number, since it uses more digits than its factorization.

18683248172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13325 (or 6716 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The spelling of 18683248172 in words is "eighteen billion, six hundred eighty-three million, two hundred forty-eight thousand, one hundred seventy-two".