26240027308289 has 2 divisors, whose sum is σ = 26240027308290. Its totient is φ = 26240027308288.

The previous prime is 26240027308267. The next prime is 26240027308303. The reversal of 26240027308289 is 98280372004262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24617226480625 + 1622800827664 = 4961575^2 + 1273892^2 .

It is a cyclic number.

It is not a de Polignac number, because 26240027308289 - 2²⁴ = 26240010531073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26240027308289.

It is not a weakly prime, because it can be changed into another prime (26240027308889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13120013654144 + 13120013654145.

It is an arithmetic number, because the mean of its divisors is an integer number (13120013654145).

Almost surely, 2^{26240027308289} is an apocalyptic number.

It is an amenable number.

26240027308289 is a deficient number, since it is larger than the sum of its proper divisors (1).

26240027308289 is an equidigital number, since it uses as much as digits as its factorization.

26240027308289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 26240027308289 in words is "twenty-six trillion, two hundred forty billion, twenty-seven million, three hundred eight thousand, two hundred eighty-nine".