26268311077 has 2 divisors, whose sum is σ = 26268311078. Its totient is φ = 26268311076.

The previous prime is 26268311057. The next prime is 26268311081. The reversal of 26268311077 is 77011386262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18977542081 + 7290768996 = 137759^2 + 85386^2 .

It is a cyclic number.

It is not a de Polignac number, because 26268311077 - 2⁷ = 26268310949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26268311057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13134155538 + 13134155539.

It is an arithmetic number, because the mean of its divisors is an integer number (13134155539).

Almost surely, 2^26268311077 is an apocalyptic number.

It is an amenable number.

26268311077 is a deficient number, since it is larger than the sum of its proper divisors (1).

26268311077 is an equidigital number, since it uses as much as digits as its factorization.

26268311077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 26268311077 in words is "twenty-six billion, two hundred sixty-eight million, three hundred eleven thousand, seventy-seven".