188913197472 has 96 divisors (see below), whose sum is σ = 512621544960. Its totient is φ = 60853109760.

The previous prime is 188913197419. The next prime is 188913197497. The reversal of 188913197472 is 274791319881.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065218 + ... + 2154750.

It is an arithmetic number, because the mean of its divisors is an integer number (5339807760).

Almost surely, 2^188913197472 is an apocalyptic number.

188913197472 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 188913197472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256310772480).

188913197472 is an abundant number, since it is smaller than the sum of its proper divisors (323708347488).

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

188913197472 is a wasteful number, since it uses less digits than its factorization.

188913197472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90286 (or 90278 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 60.

The spelling of 188913197472 in words is "one hundred eighty-eight billion, nine hundred thirteen million, one hundred ninety-seven thousand, four hundred seventy-two".