9663125931 has 20 divisors (see below), whose sum is σ = 14932803600. Its totient is φ = 6219941616.

The previous prime is 9663125891. The next prime is 9663125977. The reversal of 9663125931 is 1395213669.

9663125931 is a `hidden beast` number, since 9 + 6 + 631 + 2 + 5 + 9 + 3 + 1 = 666.

It is not a de Polignac number, because 9663125931 - 2⁶ = 9663125867 is a prime.

It is a super-2 number, since 2×9663125931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9663125981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2054511 + ... + 2059208.

It is an arithmetic number, because the mean of its divisors is an integer number (746640180).

Almost surely, 2^9663125931 is an apocalyptic number.

9663125931 is a deficient number, since it is larger than the sum of its proper divisors (5269677669).

9663125931 is a wasteful number, since it uses less digits than its factorization.

9663125931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113760 (or 4113751 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 9663125931 is about 98301.2000486261. The cubic root of 9663125931 is about 2129.9653892412.

The spelling of 9663125931 in words is "nine billion, six hundred sixty-three million, one hundred twenty-five thousand, nine hundred thirty-one".