26296648289 has 2 divisors, whose sum is σ = 26296648290. Its totient is φ = 26296648288.

The previous prime is 26296648253. The next prime is 26296648291. The reversal of 26296648289 is 98284669262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20476179025 + 5820469264 = 143095^2 + 76292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26296648289 is a prime.

It is a super-2 number, since 2×26296648289² (a number of 22 digits) contains 22 as substring.

Together with 26296648291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26296648219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13148324144 + 13148324145.

It is an arithmetic number, because the mean of its divisors is an integer number (13148324145).

Almost surely, 2^26296648289 is an apocalyptic number.

It is an amenable number.

26296648289 is a deficient number, since it is larger than the sum of its proper divisors (1).

26296648289 is an equidigital number, since it uses as much as digits as its factorization.

26296648289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35831808, while the sum is 62.

The spelling of 26296648289 in words is "twenty-six billion, two hundred ninety-six million, six hundred forty-eight thousand, two hundred eighty-nine".