Officials say there have been 11 winning jackpots of $500 million or more since Mega Millions began in 2002.
The Powerball prize keeps getting more massive because of the inability of anyone to overcome the long odds of 1 in 292.2 million and win the jackpot.
No one matched all six numbers and won the estimated $825 million grand prize on Saturday.
Striking it rich can draw scammers, scads of sad stories and trigger personal struggles.
Michael Todd Hill was convicted of first-degree murder in the slaying of his girlfriend.
Organizers blamed "human error" for the multistate lottery's mixup.
"I kept thinking this can't be right," LaQuedra Edwards said.
24-year-old Manuel Franco won $768 million in the Powerball, the third largest jackpot in U.S. history.
"I definitely added the Michigan Lottery to my safe senders list just in case I ever get lucky enough to receive another email about a huge prize."