A texas instruments calculator, its model number it TI-84 plus.
A TI-84 Plus Texas Instruments electronic device lying on a table.
The start of the answer to the equation is /4.07044e13
a TI-84 Plus Texas Instruments calculator with a large sum on the screen
A TI 84 Plus calculator turned on with 6.67 E11*6.0e24 at the top of the screen