9189009008 has 20 divisors (see below), whose sum is σ = 17807450280. Its totient is φ = 4593537984.

The previous prime is 9189008989. The next prime is 9189009019. The reversal of 9189009008 is 8009009819.

It is a self number, because there is not a number n which added to its sum of digits gives 9189009008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21383 + ... + 137241.

It is an arithmetic number, because the mean of its divisors is an integer number (890372514).

Almost surely, 2^9189009008 is an apocalyptic number.

It is an amenable number.

9189009008 is a deficient number, since it is larger than the sum of its proper divisors (8618441272).

9189009008 is a wasteful number, since it uses less digits than its factorization.

9189009008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120824 (or 120818 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 9189009008 is about 95859.3188375549. The cubic root of 9189009008 is about 2094.5443428538.

The spelling of 9189009008 in words is "nine billion, one hundred eighty-nine million, nine thousand, eight".