Transforming the given equation:

Plug in the given values:

You'll get an exponent of 457508.5714... Which means that is much too large for your calculator. Therefore you get a MATH ERROR warning.

According to my computer the result is approximately 1.0325673*10^201933.

That is a number with nearly 202000 digits.

So I guess that there must be a small but very effective mistake in your calculations