26707762206661 has 2 divisors, whose sum is σ = 26707762206662. Its totient is φ = 26707762206660.

The previous prime is 26707762206529. The next prime is 26707762206673. The reversal of 26707762206661 is 16660226770762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26363552357025 + 344209849636 = 5134545^2 + 586694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26707762206661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26707762206596 and 26707762206605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26707762206061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13353881103330 + 13353881103331.

It is an arithmetic number, because the mean of its divisors is an integer number (13353881103331).

Almost surely, 2^{26707762206661} is an apocalyptic number.

It is an amenable number.

26707762206661 is a deficient number, since it is larger than the sum of its proper divisors (1).

26707762206661 is an equidigital number, since it uses as much as digits as its factorization.

26707762206661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 58.

The spelling of 26707762206661 in words is "twenty-six trillion, seven hundred seven billion, seven hundred sixty-two million, two hundred six thousand, six hundred sixty-one".