26591438313941 has 2 divisors, whose sum is σ = 26591438313942. Its totient is φ = 26591438313940.

The previous prime is 26591438313899. The next prime is 26591438314003. The reversal of 26591438313941 is 14931383419562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20672289929041 + 5919148384900 = 4546679^2 + 2432930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26591438313941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26591438316941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13295719156970 + 13295719156971.

It is an arithmetic number, because the mean of its divisors is an integer number (13295719156971).

Almost surely, 2^{26591438313941} is an apocalyptic number.

It is an amenable number.

26591438313941 is a deficient number, since it is larger than the sum of its proper divisors (1).

26591438313941 is an equidigital number, since it uses as much as digits as its factorization.

26591438313941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 59.

The spelling of 26591438313941 in words is "twenty-six trillion, five hundred ninety-one billion, four hundred thirty-eight million, three hundred thirteen thousand, nine hundred forty-one".