189436182845920 has 96 divisors (see below), whose sum is σ = 448531654386816. Its totient is φ = 75607092019200.

The previous prime is 189436182845911. The next prime is 189436182845927. The reversal of 189436182845920 is 29548281634981.

It is a self number, because there is not a number n which added to its sum of digits gives 189436182845920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189436182845927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3264367305 + ... + 3264425335.

It is an arithmetic number, because the mean of its divisors is an integer number (4672204733196).

Almost surely, 2^{189436182845920} is an apocalyptic number.

189436182845920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189436182845920 is an abundant number, since it is smaller than the sum of its proper divisors (259095471540896).

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

189436182845920 is a wasteful number, since it uses less digits than its factorization.

189436182845920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102764 (or 102756 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 70.

The spelling of 189436182845920 in words is "one hundred eighty-nine trillion, four hundred thirty-six billion, one hundred eighty-two million, eight hundred forty-five thousand, nine hundred twenty".