26405265319 has 2 divisors, whose sum is σ = 26405265320. Its totient is φ = 26405265318.

The previous prime is 26405265259. The next prime is 26405265323. The reversal of 26405265319 is 91356250462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26405265319 - 2²³ = 26396876711 is a prime.

It is a super-2 number, since 2×26405265319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26405235319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13202632659 + 13202632660.

It is an arithmetic number, because the mean of its divisors is an integer number (13202632660).

Almost surely, 2^26405265319 is an apocalyptic number.

26405265319 is a deficient number, since it is larger than the sum of its proper divisors (1).

26405265319 is an equidigital number, since it uses as much as digits as its factorization.

26405265319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 26405265319 in words is "twenty-six billion, four hundred five million, two hundred sixty-five thousand, three hundred nineteen".