12900015925 has 6 divisors (see below), whose sum is σ = 15996019778. Its totient is φ = 10320012720.

The previous prime is 12900015901. The next prime is 12900015937. The reversal of 12900015925 is 52951000921.

12900015925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1150973476 + 11749042449 = 33926^2 + 108393^2 .

It is not a de Polignac number, because 12900015925 - 2⁷ = 12900015797 is a prime.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 258000294 + ... + 258000343.

Almost surely, 2^12900015925 is an apocalyptic number.

It is an amenable number.

12900015925 is a deficient number, since it is larger than the sum of its proper divisors (3096003853).

12900015925 is an equidigital number, since it uses as much as digits as its factorization.

12900015925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516000647 (or 516000642 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 12900015925 in words is "twelve billion, nine hundred million, fifteen thousand, nine hundred twenty-five".