26265368369 has 2 divisors, whose sum is σ = 26265368370. Its totient is φ = 26265368368.

The previous prime is 26265368323. The next prime is 26265368413. The reversal of 26265368369 is 96386356262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19919652769 + 6345715600 = 141137^2 + 79660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26265368369 is a prime.

It is a super-2 number, since 2×26265368369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26265368069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132684184 + 13132684185.

It is an arithmetic number, because the mean of its divisors is an integer number (13132684185).

Almost surely, 2^26265368369 is an apocalyptic number.

It is an amenable number.

26265368369 is a deficient number, since it is larger than the sum of its proper divisors (1).

26265368369 is an equidigital number, since it uses as much as digits as its factorization.

26265368369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 56.

The spelling of 26265368369 in words is "twenty-six billion, two hundred sixty-five million, three hundred sixty-eight thousand, three hundred sixty-nine".