26395566138841 has 2 divisors, whose sum is σ = 26395566138842. Its totient is φ = 26395566138840.

The previous prime is 26395566138791. The next prime is 26395566138917. The reversal of 26395566138841 is 14883166559362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26394985136025 + 581002816 = 5137605^2 + 24104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26395566138841 is a prime.

It is not a weakly prime, because it can be changed into another prime (26395566138541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13197783069420 + 13197783069421.

It is an arithmetic number, because the mean of its divisors is an integer number (13197783069421).

Almost surely, 2^{26395566138841} is an apocalyptic number.

It is an amenable number.

26395566138841 is a deficient number, since it is larger than the sum of its proper divisors (1).

26395566138841 is an equidigital number, since it uses as much as digits as its factorization.

26395566138841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 223948800, while the sum is 67.

The spelling of 26395566138841 in words is "twenty-six trillion, three hundred ninety-five billion, five hundred sixty-six million, one hundred thirty-eight thousand, eight hundred forty-one".