26268830434513 has 2 divisors, whose sum is σ = 26268830434514. Its totient is φ = 26268830434512.

The previous prime is 26268830434481. The next prime is 26268830434591. The reversal of 26268830434513 is 31543403886262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19696847000769 + 6571983433744 = 4438113^2 + 2563588^2 .

It is a cyclic number.

It is not a de Polignac number, because 26268830434513 - 2⁵ = 26268830434481 is a prime.

It is not a weakly prime, because it can be changed into another prime (26268830434013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13134415217256 + 13134415217257.

It is an arithmetic number, because the mean of its divisors is an integer number (13134415217257).

Almost surely, 2^{26268830434513} is an apocalyptic number.

It is an amenable number.

26268830434513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26268830434513 is an equidigital number, since it uses as much as digits as its factorization.

26268830434513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19906560, while the sum is 55.

The spelling of 26268830434513 in words is "twenty-six trillion, two hundred sixty-eight billion, eight hundred thirty million, four hundred thirty-four thousand, five hundred thirteen".