189686992353612 has 96 divisors (see below), whose sum is σ = 503251995966720. Its totient is φ = 55126324535040.

The previous prime is 189686992353581. The next prime is 189686992353641. The reversal of 189686992353612 is 216353299686981.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95691063 + ... + 97653230.

It is an arithmetic number, because the mean of its divisors is an integer number (5242208291320).

Almost surely, 2^{189686992353612} is an apocalyptic number.

189686992353612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189686992353612 is an abundant number, since it is smaller than the sum of its proper divisors (313565003613108).

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

189686992353612 is a wasteful number, since it uses less digits than its factorization.

189686992353612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193344663 (or 193344661 counting only the distinct ones).

The product of its digits is 1813985280, while the sum is 78.

The spelling of 189686992353612 in words is "one hundred eighty-nine trillion, six hundred eighty-six billion, nine hundred ninety-two million, three hundred fifty-three thousand, six hundred twelve".