189770307072 has 80 divisors (see below), whose sum is σ = 506532459312. Its totient is φ = 63135088640.

The previous prime is 189770307059. The next prime is 189770307107. The reversal of 189770307072 is 270703077981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681688 + ... + 918824.

Almost surely, 2^189770307072 is an apocalyptic number.

189770307072 is a gapful number since it is divisible by the number (12) 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 189770307072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253266229656).

189770307072 is an abundant number, since it is smaller than the sum of its proper divisors (316762152240).

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

189770307072 is an equidigital number, since it uses as much as digits as its factorization.

189770307072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237679 (or 237663 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 51.

The spelling of 189770307072 in words is "one hundred eighty-nine billion, seven hundred seventy million, three hundred seven thousand, seventy-two".