189638915224 has 32 divisors (see below), whose sum is σ = 387963205200. Its totient is φ = 86184968320.

The previous prime is 189638915183. The next prime is 189638915261. The reversal of 189638915224 is 422519836981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351834 + ... + 709270.

Almost surely, 2^189638915224 is an apocalyptic number.

It is an amenable number.

189638915224 is an abundant number, since it is smaller than the sum of its proper divisors (198324289976).

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

189638915224 is a wasteful number, since it uses less digits than its factorization.

189638915224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363483 (or 363479 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The spelling of 189638915224 in words is "one hundred eighty-nine billion, six hundred thirty-eight million, nine hundred fifteen thousand, two hundred twenty-four".