11393726209 has 2 divisors, whose sum is σ = 11393726210. Its totient is φ = 11393726208.

The previous prime is 11393726117. The next prime is 11393726221. The reversal of 11393726209 is 90262739311.

11393726209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9377985600 + 2015740609 = 96840^2 + 44897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11393726209 is a prime.

It is not a weakly prime, because it can be changed into another prime (11393726249) 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, 5696863104 + 5696863105.

It is an arithmetic number, because the mean of its divisors is an integer number (5696863105).

Almost surely, 2^11393726209 is an apocalyptic number.

It is an amenable number.

11393726209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11393726209 is an equidigital number, since it uses as much as digits as its factorization.

11393726209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 11393726209 in words is "eleven billion, three hundred ninety-three million, seven hundred twenty-six thousand, two hundred nine".