26342503009 has 2 divisors, whose sum is σ = 26342503010. Its totient is φ = 26342503008.

The previous prime is 26342503001. The next prime is 26342503039. The reversal of 26342503009 is 90030524362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19143489600 + 7199013409 = 138360^2 + 84847^2 .

It is a cyclic number.

It is not a de Polignac number, because 26342503009 - 2³ = 26342503001 is a prime.

It is not a weakly prime, because it can be changed into another prime (26342503001) 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 as a sum of consecutive naturals, namely, 13171251504 + 13171251505.

It is an arithmetic number, because the mean of its divisors is an integer number (13171251505).

Almost surely, 2^26342503009 is an apocalyptic number.

It is an amenable number.

26342503009 is a deficient number, since it is larger than the sum of its proper divisors (1).

26342503009 is an equidigital number, since it uses as much as digits as its factorization.

26342503009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 26342503009 in words is "twenty-six billion, three hundred forty-two million, five hundred three thousand, nine".