188894834688 has 416 divisors, whose sum is σ = 615984168960. Its totient is φ = 50253004800.

The previous prime is 188894834669. The next prime is 188894834699. The reversal of 188894834688 is 886438498881.

It is a congruent number.

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, 147688833 + ... + 147690111.

Almost surely, 2^188894834688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188894834688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307992084480).

188894834688 is an abundant number, since it is smaller than the sum of its proper divisors (427089334272).

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

188894834688 is a wasteful number, since it uses less digits than its factorization.

188894834688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1409 counting only the distinct ones).

The product of its digits is 679477248, while the sum is 75.

The spelling of 188894834688 in words is "one hundred eighty-eight billion, eight hundred ninety-four million, eight hundred thirty-four thousand, six hundred eighty-eight".