But I think they represent the 13 states ( or what were once the 13 states ) of that time, and if so what were they, I'm unsure what they were. I could google it but I was trying for off the top of my head, Sorry!
50 around the eagle representing the 50 states and 13 next to the eagle representing the 13 colonies. To answer your question, there are 63 stars on the presidential seal. Hope I helped!