189116928000 has 2496 divisors, whose sum is σ = 937677371904. Its totient is φ = 35389440000.

The previous prime is 189116927971. The next prime is 189116928001. The reversal of 189116928000 is 829611981.

It is a tau number, because it is divible by the number of its divisors (2496).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189116928001) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4612607980 + ... + 4612608020.

It is an arithmetic number, because the mean of its divisors is an integer number (375672024).

Almost surely, 2^189116928000 is an apocalyptic number.

189116928000 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 189116928000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468838685952).

189116928000 is an abundant number, since it is smaller than the sum of its proper divisors (748560443904).

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

189116928000 is a wasteful number, since it uses less digits than its factorization.

189116928000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 45.

The spelling of 189116928000 in words is "one hundred eighty-nine billion, one hundred sixteen million, nine hundred twenty-eight thousand".