26260342327729 has 2 divisors, whose sum is σ = 26260342327730. Its totient is φ = 26260342327728.

The previous prime is 26260342327711. The next prime is 26260342327753. The reversal of 26260342327729 is 92772324306262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23317309440000 + 2943032887729 = 4828800^2 + 1715527^2 .

It is a cyclic number.

It is not a de Polignac number, because 26260342327729 - 2¹³ = 26260342319537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26260342327729.

It is not a weakly prime, because it can be changed into another prime (26260342327799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13130171163864 + 13130171163865.

It is an arithmetic number, because the mean of its divisors is an integer number (13130171163865).

Almost surely, 2^{26260342327729} is an apocalyptic number.

It is an amenable number.

26260342327729 is a deficient number, since it is larger than the sum of its proper divisors (1).

26260342327729 is an equidigital number, since it uses as much as digits as its factorization.

26260342327729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 55.

The spelling of 26260342327729 in words is "twenty-six trillion, two hundred sixty billion, three hundred forty-two million, three hundred twenty-seven thousand, seven hundred twenty-nine".