189982756536 has 32 divisors (see below), whose sum is σ = 483918345360. Its totient is φ = 62132724992.

The previous prime is 189982756517. The next prime is 189982756547. The reversal of 189982756536 is 635657289981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74677485 + ... + 74680028.

Almost surely, 2^189982756536 is an apocalyptic number.

It is an amenable number.

189982756536 is an abundant number, since it is smaller than the sum of its proper divisors (293935588824).

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

189982756536 is a wasteful number, since it uses less digits than its factorization.

189982756536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149357575 (or 149357571 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 69.

The spelling of 189982756536 in words is "one hundred eighty-nine billion, nine hundred eighty-two million, seven hundred fifty-six thousand, five hundred thirty-six".