9638999960 has 32 divisors (see below), whose sum is σ = 22216723200. Its totient is φ = 3761560320.

The previous prime is 9638999917. The next prime is 9639000031. The reversal of 9638999960 is 699998369.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2937080 + ... + 2940359.

It is an arithmetic number, because the mean of its divisors is an integer number (694272600).

Almost surely, 2^9638999960 is an apocalyptic number.

It is an amenable number.

9638999960 is an abundant number, since it is smaller than the sum of its proper divisors (12577723240).

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

9638999960 is a wasteful number, since it uses less digits than its factorization.

9638999960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877491 (or 5877487 counting only the distinct ones).

The product of its (nonzero) digits is 51018336, while the sum is 68.

The square root of 9638999960 is about 98178.4088280107. The cubic root of 9638999960 is about 2128.1912804814.

The spelling of 9638999960 in words is "nine billion, six hundred thirty-eight million, nine hundred ninety-nine thousand, nine hundred sixty".