189089362720 has 192 divisors, whose sum is σ = 479978763264. Its totient is φ = 70221634560.

The previous prime is 189089362669. The next prime is 189089362733. The reversal of 189089362720 is 27263980981.

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, 25789455 + ... + 25796785.

It is an arithmetic number, because the mean of its divisors is an integer number (2499889392).

Almost surely, 2^189089362720 is an apocalyptic number.

189089362720 is a gapful number since it is divisible by the number (10) 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 189089362720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239989381632).

189089362720 is an abundant number, since it is smaller than the sum of its proper divisors (290889400544).

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

189089362720 is a wasteful number, since it uses less digits than its factorization.

189089362720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575 (or 7567 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 189089362720 in words is "one hundred eighty-nine billion, eighty-nine million, three hundred sixty-two thousand, seven hundred twenty".