Number of weeks Prince William receives for paternity leave: 2.
Number of names the baby is likely to have: 4 (Princes Charles, William and Harry all have 3 middle names).
Number of generations of direct descendants to the throne currently living: 4.
Time of prince's birth: 4:24 P.M. U.K. time.
Prince's birth weight: 8 pounds, 6 ounces.
Number of direct descendants of the Queen: 15 (4 children, 8 grandchildren, 3 great-grandchildren including the new baby).
Number of years since the last direct heir was born: 31 (Prince William was born on June 21, 1982).
Number of commemorative silver pennies to be minted and distributed to babies born the same day: 2013.
Number of royal baby-related bets the Ladbrokes betting agency accepted on the morning the prince was born: 50,000.
Expected royal birth contribution to Britain's souvenir industry: 56 million pounds ($88 million), according to the U.K. Centre of Retail Research.