12605570797 has 2 divisors, whose sum is σ = 12605570798. Its totient is φ = 12605570796.

The previous prime is 12605570743. The next prime is 12605570833. The reversal of 12605570797 is 79707550621.

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., 6603350121 + 6002220676 = 81261^2 + 77474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12605570797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12605570797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12605570717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302785398 + 6302785399.

It is an arithmetic number, because the mean of its divisors is an integer number (6302785399).

Almost surely, 2^12605570797 is an apocalyptic number.

It is an amenable number.

12605570797 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605570797 is an equidigital number, since it uses as much as digits as its factorization.

12605570797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 926100, while the sum is 49.

The spelling of 12605570797 in words is "twelve billion, six hundred five million, five hundred seventy thousand, seven hundred ninety-seven".