18560921682 has 16 divisors (see below), whose sum is σ = 37192828320. Its totient is φ = 6175143072.

The previous prime is 18560921641. The next prime is 18560921689. The reversal of 18560921682 is 28612906581.

It is not an unprimeable number, because it can be changed into a prime (18560921689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954307 + ... + 2960582.

It is an arithmetic number, because the mean of its divisors is an integer number (2324551770).

Almost surely, 2^18560921682 is an apocalyptic number.

18560921682 is an abundant number, since it is smaller than the sum of its proper divisors (18631906638).

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

18560921682 is a wasteful number, since it uses less digits than its factorization.

18560921682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915417.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 18560921682 in words is "eighteen billion, five hundred sixty million, nine hundred twenty-one thousand, six hundred eighty-two".