When I first heard the answer I thought "How the sam hill would anyone have got that". So unless you are prepared to be severely hacked off by the answer, please don't spend time on it. Here it is anyway....
The number 8,549,176,320 is a totally unique number. Quite apart from the fact that you have not come across it before, why is it so?
PS Scunner I have not checked that the number is unique