189289968384 has 432 divisors, whose sum is σ = 572620353536. Its totient is φ = 55436451840.

The previous prime is 189289968331. The next prime is 189289968443. The reversal of 189289968384 is 483869982981.

It is a happy number.

It is a super-3 number, since 3×189289968384³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 507479622 + ... + 507479994.

Almost surely, 2^189289968384 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 189289968384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286310176768).

189289968384 is an abundant number, since it is smaller than the sum of its proper divisors (383330385152).

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

189289968384 is a wasteful number, since it uses less digits than its factorization.

189289968384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584 (or 559 counting only the distinct ones).

The product of its digits is 429981696, while the sum is 75.

The spelling of 189289968384 in words is "one hundred eighty-nine billion, two hundred eighty-nine million, nine hundred sixty-eight thousand, three hundred eighty-four".