What does 5.0454e+14 mean?????

If you have a small "e", then e = appr 2.71828...

which is "Euler's" number.
it is an irrational number.

so 5.0454 e^14 is 6,067,619.655 on my calculator

if you have 5.045E+14, as I suspect you have, then it is
5.0454 x 10^14 , which is a large number written in scientific notation.
it would be 504,540,000,000,000
so about 505 trillion