12865570037125 has 16 divisors (see below), whose sum is σ = 17291326132080. Its totient is φ = 9500728641600.

The previous prime is 12865570037123. The next prime is 12865570037141. The reversal of 12865570037125 is 52173007556821.

It can be written as a sum of positive squares in 8 ways, for example, as 3011533332129 + 9854036704996 = 1735377^2 + 3139114^2 .

It is not a de Polignac number, because 12865570037125 - 2¹ = 12865570037123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12865570037123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3958635310 + ... + 3958638559.

It is an arithmetic number, because the mean of its divisors is an integer number (1080707883255).

Almost surely, 2^{12865570037125} is an apocalyptic number.

It is an amenable number.

12865570037125 is a deficient number, since it is larger than the sum of its proper divisors (4425756094955).

12865570037125 is an equidigital number, since it uses as much as digits as its factorization.

12865570037125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917273897 (or 7917273887 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 12865570037125 in words is "twelve trillion, eight hundred sixty-five billion, five hundred seventy million, thirty-seven thousand, one hundred twenty-five".