26085765409699 has 2 divisors, whose sum is σ = 26085765409700. Its totient is φ = 26085765409698.

The previous prime is 26085765409681. The next prime is 26085765409703. The reversal of 26085765409699 is 99690456758062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26085765409699 is a prime.

It is not a weakly prime, because it can be changed into another prime (26085765409199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042882704849 + 13042882704850.

It is an arithmetic number, because the mean of its divisors is an integer number (13042882704850).

Almost surely, 2^{26085765409699} is an apocalyptic number.

26085765409699 is a deficient number, since it is larger than the sum of its proper divisors (1).

26085765409699 is an equidigital number, since it uses as much as digits as its factorization.

26085765409699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1763596800, while the sum is 76.

The spelling of 26085765409699 in words is "twenty-six trillion, eighty-five billion, seven hundred sixty-five million, four hundred nine thousand, six hundred ninety-nine".