26360643316697 has 2 divisors, whose sum is σ = 26360643316698. Its totient is φ = 26360643316696.

The previous prime is 26360643316643. The next prime is 26360643316723. The reversal of 26360643316697 is 79661334606362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22025103134281 + 4335540182416 = 4693091^2 + 2082196^2 .

It is a cyclic number.

It is not a de Polignac number, because 26360643316697 - 2³⁴ = 26343463447513 is a prime.

It is not a weakly prime, because it can be changed into another prime (26360643316097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13180321658348 + 13180321658349.

It is an arithmetic number, because the mean of its divisors is an integer number (13180321658349).

Almost surely, 2^{26360643316697} is an apocalyptic number.

It is an amenable number.

26360643316697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26360643316697 is an equidigital number, since it uses as much as digits as its factorization.

26360643316697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105815808, while the sum is 62.

The spelling of 26360643316697 in words is "twenty-six trillion, three hundred sixty billion, six hundred forty-three million, three hundred sixteen thousand, six hundred ninety-seven".