The sum of Philip V of Spain 's reigns was 45 years and 21 weeks .
Philip V of Spain reigned for 45 years and 21 weeks on and off , he was King of Spain from 1 November 1700 to 25 May 1724 , when he abdicated in favor of his son Louis , and from 6 September 1724 , when he reassumed the throne upon his son 's death , to his own death 9 July 1746 .
Philip V of Spain