12605794589 has 2 divisors, whose sum is σ = 12605794590. Its totient is φ = 12605794588.

The previous prime is 12605794573. The next prime is 12605794633. The reversal of 12605794589 is 98549750621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12424892089 + 180902500 = 111467^2 + 13450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12605794589 - 2⁴ = 12605794573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12605791589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302897294 + 6302897295.

It is an arithmetic number, because the mean of its divisors is an integer number (6302897295).

Almost surely, 2^12605794589 is an apocalyptic number.

It is an amenable number.

12605794589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605794589 is an equidigital number, since it uses as much as digits as its factorization.

12605794589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 12605794589 in words is "twelve billion, six hundred five million, seven hundred ninety-four thousand, five hundred eighty-nine".