12575867509 has 2 divisors, whose sum is σ = 12575867510. Its totient is φ = 12575867508.

The previous prime is 12575867477. The next prime is 12575867567. The reversal of 12575867509 is 90576857521.

12575867509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7399784484 + 5176083025 = 86022^2 + 71945^2 .

It is a cyclic number.

It is not a de Polignac number, because 12575867509 - 2⁵ = 12575867477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12575867509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12575867569) by changing a digit.

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 as a sum of consecutive naturals, namely, 6287933754 + 6287933755.

It is an arithmetic number, because the mean of its divisors is an integer number (6287933755).

Almost surely, 2^12575867509 is an apocalyptic number.

It is an amenable number.

12575867509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575867509 is an equidigital number, since it uses as much as digits as its factorization.

12575867509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 12575867509 in words is "twelve billion, five hundred seventy-five million, eight hundred sixty-seven thousand, five hundred nine".