26590367213 has 2 divisors, whose sum is σ = 26590367214. Its totient is φ = 26590367212.

The previous prime is 26590367179. The next prime is 26590367249. The reversal of 26590367213 is 31276309562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25632650404 + 957716809 = 160102^2 + 30947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26590367213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26590367113) 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, 13295183606 + 13295183607.

It is an arithmetic number, because the mean of its divisors is an integer number (13295183607).

Almost surely, 2^26590367213 is an apocalyptic number.

It is an amenable number.

26590367213 is a deficient number, since it is larger than the sum of its proper divisors (1).

26590367213 is an equidigital number, since it uses as much as digits as its factorization.

26590367213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 26590367213 in words is "twenty-six billion, five hundred ninety million, three hundred sixty-seven thousand, two hundred thirteen".