18982950172 has 24 divisors (see below), whose sum is σ = 33390176400. Its totient is φ = 9442999296.

The previous prime is 18982950167. The next prime is 18982950187. The reversal of 18982950172 is 27105928981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783228 + ... + 807100.

It is an arithmetic number, because the mean of its divisors is an integer number (1391257350).

Almost surely, 2^18982950172 is an apocalyptic number.

It is an amenable number.

18982950172 is a deficient number, since it is larger than the sum of its proper divisors (14407226228).

18982950172 is a wasteful number, since it uses less digits than its factorization.

18982950172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24885 (or 24883 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 18982950172 in words is "eighteen billion, nine hundred eighty-two million, nine hundred fifty thousand, one hundred seventy-two".