26264023697 has 2 divisors, whose sum is σ = 26264023698. Its totient is φ = 26264023696.

The previous prime is 26264023661. The next prime is 26264023727. The reversal of 26264023697 is 79632046262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26259878401 + 4145296 = 162049^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 26264023697 - 2¹⁴ = 26264007313 is a prime.

It is not a weakly prime, because it can be changed into another prime (26264023657) 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, 13132011848 + 13132011849.

It is an arithmetic number, because the mean of its divisors is an integer number (13132011849).

Almost surely, 2^26264023697 is an apocalyptic number.

It is an amenable number.

26264023697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26264023697 is an equidigital number, since it uses as much as digits as its factorization.

26264023697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 26264023697 in words is "twenty-six billion, two hundred sixty-four million, twenty-three thousand, six hundred ninety-seven".