This is a visuallization of how many Earth's would fit inside the sun....
Volume of the Sun = 1.41*1018 km3
Volume of the Earth = 1.08*1012 km3
Ratio = 1,301,687
Close packing ratio = pi / [3 x sqrt(2)] = 0.74048
1,301,687 x pi / [3 x sqrt(2)] = 963,874 earth volumes in the sun.
And yes, I'm ignoring sig figs here. Sorry.