9009099992 has 16 divisors (see below), whose sum is σ = 16965830400. Its totient is φ = 4484878560.

The previous prime is 9009099961. The next prime is 9009099997. The reversal of 9009099992 is 2999909009.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9009099997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456984 + ... + 2460647.

It is an arithmetic number, because the mean of its divisors is an integer number (1060364400).

Almost surely, 2^9009099992 is an apocalyptic number.

It is an amenable number.

9009099992 is a deficient number, since it is larger than the sum of its proper divisors (7956730408).

9009099992 is a wasteful number, since it uses less digits than its factorization.

9009099992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917866 (or 4917862 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 56.

The square root of 9009099992 is about 94916.2788566851. The cubic root of 9009099992 is about 2080.7846515722.

The spelling of 9009099992 in words is "nine billion, nine million, ninety-nine thousand, nine hundred ninety-two".