189423411984 has 45 divisors (see below), whose sum is σ = 530137082293. Its totient is φ = 63139396416.

The previous prime is 189423411977. The next prime is 189423412069. The reversal of 189423411984 is 489114324981.

The square root of 189423411984 is 435228.

It is a perfect power (a square), and thus also a powerful number.

189423411984 is a `hidden beast` number, since 189 + 42 + 3 + 411 + 9 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 185909293584 + 3514118400 = 431172^2 + 59280^2 .

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189423411984.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5204602 + ... + 5240870.

Almost surely, 2^189423411984 is an apocalyptic number.

189423411984 is the 435228-th square number.

It is an amenable number.

189423411984 is an abundant number, since it is smaller than the sum of its proper divisors (340713670309).

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

189423411984 is an frugal number, since it uses more digits than its factorization.

189423411984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72552 (or 36274 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The spelling of 189423411984 in words is "one hundred eighty-nine billion, four hundred twenty-three million, four hundred eleven thousand, nine hundred eighty-four".