26113881253 has 4 divisors (see below), whose sum is σ = 26750805228. Its totient is φ = 25476957280.

The previous prime is 26113881239. The next prime is 26113881323. The reversal of 26113881253 is 35218831162.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5400339169 + 20713542084 = 73487^2 + 143922^2 .

It is a cyclic number.

It is not a de Polignac number, because 26113881253 - 2²⁵ = 26080326821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26113881223) 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 3 ways as a sum of consecutive naturals, for example, 318461926 + ... + 318462007.

It is an arithmetic number, because the mean of its divisors is an integer number (6687701307).

Almost surely, 2^26113881253 is an apocalyptic number.

It is an amenable number.

26113881253 is a deficient number, since it is larger than the sum of its proper divisors (636923975).

26113881253 is an equidigital number, since it uses as much as digits as its factorization.

26113881253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636923974.

The product of its digits is 69120, while the sum is 40.

The spelling of 26113881253 in words is "twenty-six billion, one hundred thirteen million, eight hundred eighty-one thousand, two hundred fifty-three".