9107989756 has 12 divisors (see below), whose sum is σ = 15945444592. Its totient is φ = 4552148448.

The previous prime is 9107989729. The next prime is 9107989757. The reversal of 9107989756 is 6579897019.

It is a junction number, because it is equal to n+sod(n) for n = 9107989694 and 9107989703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9107989757) 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, 450480 + ... + 470263.

Almost surely, 2^9107989756 is an apocalyptic number.

It is an amenable number.

9107989756 is a deficient number, since it is larger than the sum of its proper divisors (6837454836).

9107989756 is a wasteful number, since it uses less digits than its factorization.

9107989756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923220 (or 923218 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 61.

The square root of 9107989756 is about 95435.7886539426. The cubic root of 9107989756 is about 2088.3703141706.

The spelling of 9107989756 in words is "nine billion, one hundred seven million, nine hundred eighty-nine thousand, seven hundred fifty-six".