26565215054713 has 2 divisors, whose sum is σ = 26565215054714. Its totient is φ = 26565215054712.

The previous prime is 26565215054629. The next prime is 26565215054723. The reversal of 26565215054713 is 31745051256562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15583924731904 + 10981290322809 = 3947648^2 + 3313803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26565215054713 is a prime.

It is not a weakly prime, because it can be changed into another prime (26565215054723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13282607527356 + 13282607527357.

It is an arithmetic number, because the mean of its divisors is an integer number (13282607527357).

Almost surely, 2^{26565215054713} is an apocalyptic number.

It is an amenable number.

26565215054713 is a deficient number, since it is larger than the sum of its proper divisors (1).

26565215054713 is an equidigital number, since it uses as much as digits as its factorization.

26565215054713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 26565215054713 in words is "twenty-six trillion, five hundred sixty-five billion, two hundred fifteen million, fifty-four thousand, seven hundred thirteen".