9830808125 has 10 divisors (see below), whose sum is σ = 12284578614. Its totient is φ = 7864646000.

The previous prime is 9830808109. The next prime is 9830808149. The reversal of 9830808125 is 5218080389.

It can be written as a sum of positive squares in 5 ways, for example, as 4621144441 + 5209663684 = 67979^2 + 72178^2 .

It is not a de Polignac number, because 9830808125 - 2⁴ = 9830808109 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 9 ways as a sum of consecutive naturals, for example, 7864022 + ... + 7865271.

Almost surely, 2^9830808125 is an apocalyptic number.

It is an amenable number.

9830808125 is a deficient number, since it is larger than the sum of its proper divisors (2453770489).

9830808125 is an equidigital number, since it uses as much as digits as its factorization.

9830808125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15729313 (or 15729298 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 9830808125 is about 99150.4317943195. The cubic root of 9830808125 is about 2142.2150852870.

The spelling of 9830808125 in words is "nine billion, eight hundred thirty million, eight hundred eight thousand, one hundred twenty-five".