12586193425 has 24 divisors (see below), whose sum is σ = 16930150776. Its totient is φ = 9226544640.

The previous prime is 12586193419. The next prime is 12586193437. The reversal of 12586193425 is 52439168521.

It can be written as a sum of positive squares in 12 ways, for example, as 2829495249 + 9756698176 = 53193^2 + 98776^2 .

It is not a de Polignac number, because 12586193425 - 2³¹ = 10438709777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96814 + ... + 185863.

It is an arithmetic number, because the mean of its divisors is an integer number (705422949).

Almost surely, 2^12586193425 is an apocalyptic number.

It is an amenable number.

12586193425 is a deficient number, since it is larger than the sum of its proper divisors (4343957351).

12586193425 is a wasteful number, since it uses less digits than its factorization.

12586193425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282837 (or 282832 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The spelling of 12586193425 in words is "twelve billion, five hundred eighty-six million, one hundred ninety-three thousand, four hundred twenty-five".