Hello YR
There are ten days off as stated before and yes, you can do back to back duties and days off although most people try it just to go back to taking days off within the same month; all the days off in a row is very nice but all the duty in a row (six weeks) is a kick in the pants. many people take their annual leave two days per month and use those to commute since you do commute on your time and then do back to back days off (once a year) for family vacation.
If you come here expect to fly the 767 because that will be it, the nearest that we will EVER get to the 787 is if we are parked beside it and expect to complete your contract on the seat that you were hired on.