26746280009 has 2 divisors, whose sum is σ = 26746280010. Its totient is φ = 26746280008.

The previous prime is 26746279969. The next prime is 26746280039. The reversal of 26746280009 is 90008264762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26397150784 + 349129225 = 162472^2 + 18685^2 .

It is a cyclic number.

It is not a de Polignac number, because 26746280009 - 2²⁸ = 26477844553 is a prime.

It is not a weakly prime, because it can be changed into another prime (26746280039) 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, 13373140004 + 13373140005.

It is an arithmetic number, because the mean of its divisors is an integer number (13373140005).

Almost surely, 2^26746280009 is an apocalyptic number.

It is an amenable number.

26746280009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26746280009 is an equidigital number, since it uses as much as digits as its factorization.

26746280009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 26746280009 in words is "twenty-six billion, seven hundred forty-six million, two hundred eighty thousand, nine".