9909431326 has 8 divisors (see below), whose sum is σ = 15000515640. Its totient is φ = 4909259448.

The previous prime is 9909431321. The next prime is 9909431339. The reversal of 9909431326 is 6231349099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909431321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22727836 + ... + 22728271.

It is an arithmetic number, because the mean of its divisors is an integer number (1875064455).

Almost surely, 2^9909431326 is an apocalyptic number.

9909431326 is a deficient number, since it is larger than the sum of its proper divisors (5091084314).

9909431326 is a wasteful number, since it uses less digits than its factorization.

9909431326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45456218.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 9909431326 is about 99546.1266247964. The cubic root of 9909431326 is about 2147.9108118087.

The spelling of 9909431326 in words is "nine billion, nine hundred nine million, four hundred thirty-one thousand, three hundred twenty-six".