26264506757 has 2 divisors, whose sum is σ = 26264506758. Its totient is φ = 26264506756.

The previous prime is 26264506739. The next prime is 26264506789. The reversal of 26264506757 is 75760546262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21460492036 + 4804014721 = 146494^2 + 69311^2 .

It is a cyclic number.

It is not a de Polignac number, because 26264506757 - 2²² = 26260312453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26264506717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132253378 + 13132253379.

It is an arithmetic number, because the mean of its divisors is an integer number (13132253379).

Almost surely, 2^26264506757 is an apocalyptic number.

It is an amenable number.

26264506757 is a deficient number, since it is larger than the sum of its proper divisors (1).

26264506757 is an equidigital number, since it uses as much as digits as its factorization.

26264506757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 26264506757 in words is "twenty-six billion, two hundred sixty-four million, five hundred six thousand, seven hundred fifty-seven".