189089417088 has 640 divisors, whose sum is σ = 669000578400. Its totient is φ = 52261355520.

The previous prime is 189089417021. The next prime is 189089417107. The reversal of 189089417088 is 880714980981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 131952820 + ... + 131954252.

Almost surely, 2^189089417088 is an apocalyptic number.

189089417088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189089417088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334500289200).

189089417088 is an abundant number, since it is smaller than the sum of its proper divisors (479911161312).

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

189089417088 is a wasteful number, since it uses less digits than its factorization.

189089417088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 63.

The spelling of 189089417088 in words is "one hundred eighty-nine billion, eighty-nine million, four hundred seventeen thousand, eighty-eight".