12875372617 has 2 divisors, whose sum is σ = 12875372618. Its totient is φ = 12875372616.

The previous prime is 12875372491. The next prime is 12875372623. The reversal of 12875372617 is 71627357821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11010514761 + 1864857856 = 104931^2 + 43184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12875372617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12875372677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437686308 + 6437686309.

It is an arithmetic number, because the mean of its divisors is an integer number (6437686309).

Almost surely, 2^12875372617 is an apocalyptic number.

It is an amenable number.

12875372617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12875372617 is an equidigital number, since it uses as much as digits as its factorization.

12875372617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 49.

The spelling of 12875372617 in words is "twelve billion, eight hundred seventy-five million, three hundred seventy-two thousand, six hundred seventeen".