26122564079 has 2 divisors, whose sum is σ = 26122564080. Its totient is φ = 26122564078.

The previous prime is 26122564073. The next prime is 26122564159. The reversal of 26122564079 is 97046522162.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26122564079 is a prime.

It is a super-2 number, since 2×26122564079² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26122564073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13061282039 + 13061282040.

It is an arithmetic number, because the mean of its divisors is an integer number (13061282040).

Almost surely, 2^26122564079 is an apocalyptic number.

26122564079 is a deficient number, since it is larger than the sum of its proper divisors (1).

26122564079 is an equidigital number, since it uses as much as digits as its factorization.

26122564079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 26122564079 in words is "twenty-six billion, one hundred twenty-two million, five hundred sixty-four thousand, seventy-nine".