4.6million character hash rar file

[Shqipz]

So i have a rar file, don't know the password, i'm not sure on the password or how many characters. 

I used john the ripper to get the hash being RAR3 [SHA1 256/256 AVX2 8X AES]

And the hash is about 4.6million characters, i am new to hashcat so im not sure if this means it uncrackable but i assume it relatively is. 

My main question is it crackable/bruteforce and what would be the best way of going to crack it if it is.