9946657912 has 24 divisors (see below), whose sum is σ = 18711988200. Its totient is φ = 4956810720.

The previous prime is 9946657841. The next prime is 9946657939. The reversal of 9946657912 is 2197566499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5343862 + ... + 5345722.

It is an arithmetic number, because the mean of its divisors is an integer number (779666175).

Almost surely, 2^9946657912 is an apocalyptic number.

It is an amenable number.

9946657912 is a deficient number, since it is larger than the sum of its proper divisors (8765330288).

9946657912 is an equidigital number, since it uses as much as digits as its factorization.

9946657912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087 (or 2222 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 58.

The square root of 9946657912 is about 99732.9329359164. The cubic root of 9946657912 is about 2150.5971236342.

The spelling of 9946657912 in words is "nine billion, nine hundred forty-six million, six hundred fifty-seven thousand, nine hundred twelve".