26353256243 has 2 divisors, whose sum is σ = 26353256244. Its totient is φ = 26353256242.

The previous prime is 26353256219. The next prime is 26353256249. The reversal of 26353256243 is 34265235362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26353256243 - 2²⁰ = 26352207667 is a prime.

It is a super-2 number, since 2×26353256243² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26353256243.

It is not a weakly prime, because it can be changed into another prime (26353256249) 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, 13176628121 + 13176628122.

It is an arithmetic number, because the mean of its divisors is an integer number (13176628122).

Almost surely, 2^26353256243 is an apocalyptic number.

26353256243 is a deficient number, since it is larger than the sum of its proper divisors (1).

26353256243 is an equidigital number, since it uses as much as digits as its factorization.

26353256243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 41.

The spelling of 26353256243 in words is "twenty-six billion, three hundred fifty-three million, two hundred fifty-six thousand, two hundred forty-three".