26085626909 has 2 divisors, whose sum is σ = 26085626910. Its totient is φ = 26085626908.

The previous prime is 26085626887. The next prime is 26085626929. The reversal of 26085626909 is 90962658062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25960298884 + 125328025 = 161122^2 + 11195^2 .

It is a cyclic number.

It is not a de Polignac number, because 26085626909 - 2⁸ = 26085626653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26085626929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042813454 + 13042813455.

It is an arithmetic number, because the mean of its divisors is an integer number (13042813455).

Almost surely, 2^26085626909 is an apocalyptic number.

It is an amenable number.

26085626909 is a deficient number, since it is larger than the sum of its proper divisors (1).

26085626909 is an equidigital number, since it uses as much as digits as its factorization.

26085626909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 26085626909 in words is "twenty-six billion, eighty-five million, six hundred twenty-six thousand, nine hundred nine".