9189993672 has 96 divisors (see below), whose sum is σ = 25841088000. Its totient is φ = 3059809344.

The previous prime is 9189993649. The next prime is 9189993767. The reversal of 9189993672 is 2763999819.

It is a happy number.

9189993672 is a `hidden beast` number, since 9 + 189 + 99 + 367 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2110954 + ... + 2115302.

It is an arithmetic number, because the mean of its divisors is an integer number (269178000).

Almost surely, 2^9189993672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9189993672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12920544000).

9189993672 is an abundant number, since it is smaller than the sum of its proper divisors (16651094328).

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

9189993672 is a wasteful number, since it uses less digits than its factorization.

9189993672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457 (or 5441 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 63.

The square root of 9189993672 is about 95864.4546847266. The cubic root of 9189993672 is about 2094.6191550106.

The spelling of 9189993672 in words is "nine billion, one hundred eighty-nine million, nine hundred ninety-three thousand, six hundred seventy-two".