12586582369 has 2 divisors, whose sum is σ = 12586582370. Its totient is φ = 12586582368.

The previous prime is 12586582321. The next prime is 12586582373. The reversal of 12586582369 is 96328568521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11867269969 + 719312400 = 108937^2 + 26820^2 .

It is a cyclic number.

It is not a de Polignac number, because 12586582369 - 2⁷ = 12586582241 is a prime.

It is a super-2 number, since 2×12586582369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12586582969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293291184 + 6293291185.

It is an arithmetic number, because the mean of its divisors is an integer number (6293291185).

Almost surely, 2^12586582369 is an apocalyptic number.

It is an amenable number.

12586582369 is a deficient number, since it is larger than the sum of its proper divisors (1).

12586582369 is an equidigital number, since it uses as much as digits as its factorization.

12586582369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 55.

The spelling of 12586582369 in words is "twelve billion, five hundred eighty-six million, five hundred eighty-two thousand, three hundred sixty-nine".