26806065085799 has 2 divisors, whose sum is σ = 26806065085800. Its totient is φ = 26806065085798.

The previous prime is 26806065085649. The next prime is 26806065085829. The reversal of 26806065085799 is 99758056060862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26806065085799 - 2²⁰ = 26806064037223 is a prime.

It is a super-3 number, since 3×26806065085799³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26806065085199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13403032542899 + 13403032542900.

It is an arithmetic number, because the mean of its divisors is an integer number (13403032542900).

Almost surely, 2^{26806065085799} is an apocalyptic number.

26806065085799 is a deficient number, since it is larger than the sum of its proper divisors (1).

26806065085799 is an equidigital number, since it uses as much as digits as its factorization.

26806065085799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 391910400, while the sum is 71.

The spelling of 26806065085799 in words is "twenty-six trillion, eight hundred six billion, sixty-five million, eighty-five thousand, seven hundred ninety-nine".