189944414172 has 36 divisors (see below), whose sum is σ = 480325864200. Its totient is φ = 63289935072.

The previous prime is 189944414159. The next prime is 189944414173. The reversal of 189944414172 is 271414449981.

189944414172 is a `hidden beast` number, since 1 + 8 + 9 + 94 + 441 + 41 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189944414173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943198 + ... + 1126725.

Almost surely, 2^189944414172 is an apocalyptic number.

189944414172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189944414172 is an abundant number, since it is smaller than the sum of its proper divisors (290381450028).

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

189944414172 is a wasteful number, since it uses less digits than its factorization.

189944414172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072482 (or 2072477 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 189944414172 in words is "one hundred eighty-nine billion, nine hundred forty-four million, four hundred fourteen thousand, one hundred seventy-two".