26360643316643 has 2 divisors, whose sum is σ = 26360643316644. Its totient is φ = 26360643316642.

The previous prime is 26360643316621. The next prime is 26360643316697. The reversal of 26360643316643 is 34661334606362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26360643316643 - 2³⁸ = 26085765409699 is a prime.

It is not a weakly prime, because it can be changed into another prime (26360643316613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13180321658321 + 13180321658322.

It is an arithmetic number, because the mean of its divisors is an integer number (13180321658322).

Almost surely, 2^{26360643316643} is an apocalyptic number.

26360643316643 is a deficient number, since it is larger than the sum of its proper divisors (1).

26360643316643 is an equidigital number, since it uses as much as digits as its factorization.

26360643316643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20155392, while the sum is 53.

The spelling of 26360643316643 in words is "twenty-six trillion, three hundred sixty billion, six hundred forty-three million, three hundred sixteen thousand, six hundred forty-three".