189684894720 has 88 divisors (see below), whose sum is σ = 606695329584. Its totient is φ = 50582634496.

The previous prime is 189684894713. The next prime is 189684894739. The reversal of 189684894720 is 27498486981.

It is a super-3 number, since 3×189684894720³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6159279 + ... + 6189998.

Almost surely, 2^189684894720 is an apocalyptic number.

189684894720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189684894720 is an abundant number, since it is smaller than the sum of its proper divisors (417010434864).

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

189684894720 is a wasteful number, since it uses less digits than its factorization.

189684894720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12349305 (or 12349287 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 66.

The spelling of 189684894720 in words is "one hundred eighty-nine billion, six hundred eighty-four million, eight hundred ninety-four thousand, seven hundred twenty".