9912509125 has 16 divisors (see below), whose sum is σ = 12375380160. Its totient is φ = 7927078800.

The previous prime is 9912509093. The next prime is 9912509137. The reversal of 9912509125 is 5219052199.

9912509125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9912509125 - 2⁵ = 9912509093 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 364242 + ... + 390508.

It is an arithmetic number, because the mean of its divisors is an integer number (773461260).

Almost surely, 2^9912509125 is an apocalyptic number.

It is an amenable number.

9912509125 is a deficient number, since it is larger than the sum of its proper divisors (2462871035).

9912509125 is a wasteful number, since it uses less digits than its factorization.

9912509125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29301 (or 29291 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 43.

The square root of 9912509125 is about 99561.5845846178. The cubic root of 9912509125 is about 2148.1331640716.

The spelling of 9912509125 in words is "nine billion, nine hundred twelve million, five hundred nine thousand, one hundred twenty-five".