189298365589920 has 48 divisors (see below), whose sum is σ = 596289851609760. Its totient is φ = 50479564157184.

The previous prime is 189298365589903. The next prime is 189298365589967. The reversal of 189298365589920 is 29985563892981.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197185797010 + ... + 197185797969.

It is an arithmetic number, because the mean of its divisors is an integer number (12422705241870).

Almost surely, 2^{189298365589920} is an apocalyptic number.

189298365589920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189298365589920 is an abundant number, since it is smaller than the sum of its proper divisors (406991486019840).

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

189298365589920 is a wasteful number, since it uses less digits than its factorization.

189298365589920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394371594997 (or 394371594989 counting only the distinct ones).

The product of its (nonzero) digits is 6046617600, while the sum is 84.

The spelling of 189298365589920 in words is "one hundred eighty-nine trillion, two hundred ninety-eight billion, three hundred sixty-five million, five hundred eighty-nine thousand, nine hundred twenty".