11717444617 has 2 divisors, whose sum is σ = 11717444618. Its totient is φ = 11717444616.

The previous prime is 11717444593. The next prime is 11717444689. The reversal of 11717444617 is 71644471711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11232608256 + 484836361 = 105984^2 + 22019^2 .

It is a cyclic number.

It is not a de Polignac number, because 11717444617 - 2³¹ = 9569960969 is a prime.

It is not a weakly prime, because it can be changed into another prime (11717442617) 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, 5858722308 + 5858722309.

It is an arithmetic number, because the mean of its divisors is an integer number (5858722309).

Almost surely, 2^11717444617 is an apocalyptic number.

It is an amenable number.

11717444617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11717444617 is an equidigital number, since it uses as much as digits as its factorization.

11717444617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 43.

The spelling of 11717444617 in words is "eleven billion, seven hundred seventeen million, four hundred forty-four thousand, six hundred seventeen".