9009190000 has 100 divisors (see below), whose sum is σ = 22121106480. Its totient is φ = 3552640000.

The previous prime is 9009189991. The next prime is 9009190019. The reversal of 9009190000 is 919009.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×9009190000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 703656 + ... + 716344.

Almost surely, 2^9009190000 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 9009190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11060553240).

9009190000 is an abundant number, since it is smaller than the sum of its proper divisors (13111916480).

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

9009190000 is a wasteful number, since it uses less digits than its factorization.

9009190000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788 (or 12767 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 9009190000 is about 94916.7529996681. The cubic root of 9009190000 is about 2080.7915811079.

The spelling of 9009190000 in words is "nine billion, nine million, one hundred ninety thousand".