26280053309 has 2 divisors, whose sum is σ = 26280053310. Its totient is φ = 26280053308.

The previous prime is 26280053273. The next prime is 26280053321. The reversal of 26280053309 is 90335008262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24108772900 + 2171280409 = 155270^2 + 46597^2 .

It is a cyclic number.

It is not a de Polignac number, because 26280053309 - 2²⁴ = 26263276093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26280053909) 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, 13140026654 + 13140026655.

It is an arithmetic number, because the mean of its divisors is an integer number (13140026655).

Almost surely, 2^26280053309 is an apocalyptic number.

It is an amenable number.

26280053309 is a deficient number, since it is larger than the sum of its proper divisors (1).

26280053309 is an equidigital number, since it uses as much as digits as its factorization.

26280053309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 26280053309 in words is "twenty-six billion, two hundred eighty million, fifty-three thousand, three hundred nine".