26516317453 has 2 divisors, whose sum is σ = 26516317454. Its totient is φ = 26516317452.

The previous prime is 26516317433. The next prime is 26516317493. The reversal of 26516317453 is 35471361562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20873603529 + 5642713924 = 144477^2 + 75118^2 .

It is a cyclic number.

It is not a de Polignac number, because 26516317453 - 2²⁹ = 25979446541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26516317423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13258158726 + 13258158727.

It is an arithmetic number, because the mean of its divisors is an integer number (13258158727).

Almost surely, 2^26516317453 is an apocalyptic number.

It is an amenable number.

26516317453 is a deficient number, since it is larger than the sum of its proper divisors (1).

26516317453 is an equidigital number, since it uses as much as digits as its factorization.

26516317453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The spelling of 26516317453 in words is "twenty-six billion, five hundred sixteen million, three hundred seventeen thousand, four hundred fifty-three".