9925944688 has 20 divisors (see below), whose sum is σ = 20979838008. Its totient is φ = 4511792960.

The previous prime is 9925944661. The next prime is 9925944701. The reversal of 9925944688 is 8864495299.

9925944688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28198531 + ... + 28198882.

Almost surely, 2^9925944688 is an apocalyptic number.

It is an amenable number.

9925944688 is an abundant number, since it is smaller than the sum of its proper divisors (11053893320).

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

9925944688 is a wasteful number, since it uses less digits than its factorization.

9925944688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56397432 (or 56397426 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 64.

The square root of 9925944688 is about 99629.0353662024. The cubic root of 9925944688 is about 2149.1032631720.

The spelling of 9925944688 in words is "nine billion, nine hundred twenty-five million, nine hundred forty-four thousand, six hundred eighty-eight".