9163959825 has 24 divisors (see below), whose sum is σ = 15948508000. Its totient is φ = 4630210560.

The previous prime is 9163959811. The next prime is 9163959829. The reversal of 9163959825 is 5289593619.

It is not a de Polignac number, because 9163959825 - 2⁷ = 9163959697 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (9163959829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3214000 + ... + 3216849.

Almost surely, 2^9163959825 is an apocalyptic number.

9163959825 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9163959825 is a deficient number, since it is larger than the sum of its proper divisors (6784548175).

9163959825 is a wasteful number, since it uses less digits than its factorization.

9163959825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430881 (or 6430876 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 57.

The square root of 9163959825 is about 95728.5737123457. The cubic root of 9163959825 is about 2092.6393724194.

The spelling of 9163959825 in words is "nine billion, one hundred sixty-three million, nine hundred fifty-nine thousand, eight hundred twenty-five".