26256808193 has 32 divisors (see below), whose sum is σ = 34709575680. Its totient is φ = 19229564160.

The previous prime is 26256808177. The next prime is 26256808199. The reversal of 26256808193 is 39180865262.

It is a cyclic number.

It is not a de Polignac number, because 26256808193 - 2⁴ = 26256808177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26256808199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 953780 + ... + 980922.

It is an arithmetic number, because the mean of its divisors is an integer number (1084674240).

Almost surely, 2^26256808193 is an apocalyptic number.

It is an amenable number.

26256808193 is a deficient number, since it is larger than the sum of its proper divisors (8452767487).

26256808193 is a wasteful number, since it uses less digits than its factorization.

26256808193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27917.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 26256808193 in words is "twenty-six billion, two hundred fifty-six million, eight hundred eight thousand, one hundred ninety-three".