189684210316320 has 72 divisors (see below), whose sum is σ = 647297367709356. Its totient is φ = 50582456083968.

The previous prime is 189684210316283. The next prime is 189684210316331. The reversal of 189684210316320 is 23613012486981.

It is a happy number.

189684210316320 is a `hidden beast` number, since 1 + 8 + 9 + 6 + 84 + 210 + 316 + 32 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 169529462041104 + 20154748275216 = 13020348^2 + 4489404^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65862571587 + ... + 65862574466.

Almost surely, 2^{189684210316320} is an apocalyptic number.

189684210316320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189684210316320 is an abundant number, since it is smaller than the sum of its proper divisors (457613157393036).

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

189684210316320 is a wasteful number, since it uses less digits than its factorization.

189684210316320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131725146074 (or 131725146063 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 189684210316320 in words is "one hundred eighty-nine trillion, six hundred eighty-four billion, two hundred ten million, three hundred sixteen thousand, three hundred twenty".