26466513403243 has 2 divisors, whose sum is σ = 26466513403244. Its totient is φ = 26466513403242.

The previous prime is 26466513403223. The next prime is 26466513403247. The reversal of 26466513403243 is 34230431566462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26466513403243 - 2⁹ = 26466513402731 is a prime.

It is not a weakly prime, because it can be changed into another prime (26466513403247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13233256701621 + 13233256701622.

It is an arithmetic number, because the mean of its divisors is an integer number (13233256701622).

Almost surely, 2^{26466513403243} is an apocalyptic number.

26466513403243 is a deficient number, since it is larger than the sum of its proper divisors (1).

26466513403243 is an equidigital number, since it uses as much as digits as its factorization.

26466513403243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 26466513403243 in words is "twenty-six trillion, four hundred sixty-six billion, five hundred thirteen million, four hundred three thousand, two hundred forty-three".