189097156272 has 80 divisors (see below), whose sum is σ = 500701738752. Its totient is φ = 61476729600.

The previous prime is 189097156249. The next prime is 189097156279. The reversal of 189097156272 is 272651790981.

It is not an unprimeable number, because it can be changed into a prime (189097156279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33733 + ... + 615899.

Almost surely, 2^189097156272 is an apocalyptic number.

189097156272 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 189097156272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250350869376).

189097156272 is an abundant number, since it is smaller than the sum of its proper divisors (311604582480).

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

189097156272 is a wasteful number, since it uses less digits than its factorization.

189097156272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582346 (or 582340 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 189097156272 in words is "one hundred eighty-nine billion, ninety-seven million, one hundred fifty-six thousand, two hundred seventy-two".