9907523916 has 12 divisors (see below), whose sum is σ = 23117555832. Its totient is φ = 3302507968.

The previous prime is 9907523911. The next prime is 9907523917. The reversal of 9907523916 is 6193257099.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9907523916² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9907523911) 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, 412813485 + ... + 412813508.

It is an arithmetic number, because the mean of its divisors is an integer number (1926462986).

Almost surely, 2^9907523916 is an apocalyptic number.

It is an amenable number.

9907523916 is an abundant number, since it is smaller than the sum of its proper divisors (13210031916).

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

9907523916 is a wasteful number, since it uses less digits than its factorization.

9907523916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825627000 (or 825626998 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 51.

The square root of 9907523916 is about 99536.5456302357. The cubic root of 9907523916 is about 2147.7729899256.

The spelling of 9907523916 in words is "nine billion, nine hundred seven million, five hundred twenty-three thousand, nine hundred sixteen".