189965732236 has 12 divisors (see below), whose sum is σ = 379931464528. Its totient is φ = 81413885232.

The previous prime is 189965732213. The next prime is 189965732251. The reversal of 189965732236 is 632237569981.

189965732236 is an admirable number.

It is a super-3 number, since 3×189965732236³ (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392245191 + ... + 3392245246.

Almost surely, 2^189965732236 is an apocalyptic number.

It is an amenable number.

189965732236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189965732236 is a wasteful number, since it uses less digits than its factorization.

189965732236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784490448 (or 6784490446 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 189965732236 in words is "one hundred eighty-nine billion, nine hundred sixty-five million, seven hundred thirty-two thousand, two hundred thirty-six".