9099990999909 has 12 divisors (see below), whose sum is σ = 13231480661152. Its totient is φ = 6026484105000.

The previous prime is 9099990999899. The next prime is 9099990999923.

9099990999909 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9099990999909 - 2¹¹ = 9099990997861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9099990999709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3348045367 + ... + 3348048084.

Almost surely, 2^{9099990999909} is an apocalyptic number.

It is an amenable number.

9099990999909 is a deficient number, since it is larger than the sum of its proper divisors (4131489661243).

9099990999909 is a wasteful number, since it uses less digits than its factorization.

9099990999909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6696093608 (or 6696093605 counting only the distinct ones).

The product of its (nonzero) digits is 3486784401, while the sum is 90.

The spelling of 9099990999909 in words is "nine trillion, ninety-nine billion, nine hundred ninety million, nine hundred ninety-nine thousand, nine hundred nine".