189112320000 has 1020 divisors, whose sum is σ = 745227763280. Its totient is φ = 47775744000.

The previous prime is 189112319959. The next prime is 189112320041. The reversal of 189112320000 is 23211981.

It is an interprime number because it is at equal distance from previous prime (189112319959) and next prime (189112320041).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 9953279991 + ... + 9953280009.

Almost surely, 2^189112320000 is an apocalyptic number.

189112320000 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 189112320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372613881640).

189112320000 is an abundant number, since it is smaller than the sum of its proper divisors (556115443280).

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

189112320000 is an frugal number, since it uses more digits than its factorization.

189112320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 189112320000 its reverse (23211981), we get a palindrome (189135531981).

The spelling of 189112320000 in words is "one hundred eighty-nine billion, one hundred twelve million, three hundred twenty thousand".