9909112944 has 40 divisors (see below), whose sum is σ = 25639188352. Its totient is φ = 3297792960.

The previous prime is 9909112943. The next prime is 9909112957. The reversal of 9909112944 is 4492119099.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 9909112893 and 9909112902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909112943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133294 + ... + 193869.

Almost surely, 2^9909112944 is an apocalyptic number.

It is an amenable number.

9909112944 is an abundant number, since it is smaller than the sum of its proper divisors (15730075408).

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

9909112944 is a wasteful number, since it uses less digits than its factorization.

9909112944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327805 (or 327799 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 9909112944 is about 99544.5274437525. The cubic root of 9909112944 is about 2147.8878080176.

The spelling of 9909112944 in words is "nine billion, nine hundred nine million, one hundred twelve thousand, nine hundred forty-four".