189479821186912 has 48 divisors (see below), whose sum is σ = 390495442627584. Its totient is φ = 90392463504000.

The previous prime is 189479821186897. The next prime is 189479821186933. The reversal of 189479821186912 is 219681128974981.

189479821186912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1345055514 + ... + 1345196377.

It is an arithmetic number, because the mean of its divisors is an integer number (8135321721408).

Almost surely, 2^{189479821186912} is an apocalyptic number.

It is an amenable number.

189479821186912 is an abundant number, since it is smaller than the sum of its proper divisors (201015621440672).

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

189479821186912 is a wasteful number, since it uses less digits than its factorization.

189479821186912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690252003 (or 2690251995 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 76.

The spelling of 189479821186912 in words is "one hundred eighty-nine trillion, four hundred seventy-nine billion, eight hundred twenty-one million, one hundred eighty-six thousand, nine hundred twelve".