26705864767 has 2 divisors, whose sum is σ = 26705864768. Its totient is φ = 26705864766.

The previous prime is 26705864761. The next prime is 26705864851. The reversal of 26705864767 is 76746850762.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26705864767 - 2⁷ = 26705864639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26705864761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13352932383 + 13352932384.

It is an arithmetic number, because the mean of its divisors is an integer number (13352932384).

Almost surely, 2^26705864767 is an apocalyptic number.

26705864767 is a deficient number, since it is larger than the sum of its proper divisors (1).

26705864767 is an equidigital number, since it uses as much as digits as its factorization.

26705864767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 26705864767 in words is "twenty-six billion, seven hundred five million, eight hundred sixty-four thousand, seven hundred sixty-seven".