5,163,574,218,751

[Math.] Its odd powers end with 5,163,574,218,751.  Its even powers end with 0,000,000,000,001.

 

5,663,574,218,751

[Math.]  Its odd powers end with 5,663,574,218,751. Its even powers end with 0,000,000,000,001.

 

5.88…×1012

[Astronomy]  The approximate distance (miles) that light travels in vacuum in a year. It is called a light year. 

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