189789079164 has 96 divisors (see below), whose sum is σ = 456711360000. Its totient is φ = 61296549120.

The previous prime is 189789079163. The next prime is 189789079187. The reversal of 189789079164 is 461970987981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189789079163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185884974 + ... + 185885994.

It is an arithmetic number, because the mean of its divisors is an integer number (4757410000).

Almost surely, 2^189789079164 is an apocalyptic number.

It is an amenable number.

189789079164 is an abundant number, since it is smaller than the sum of its proper divisors (266922280836).

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

189789079164 is a wasteful number, since it uses less digits than its factorization.

189789079164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 69.

The spelling of 189789079164 in words is "one hundred eighty-nine billion, seven hundred eighty-nine million, seventy-nine thousand, one hundred sixty-four".