While younger tech billionaires like Elon Musk, 51, and Mark Zuckerberg, 39, may dominate the wealth headlines, the majority of the world's billionaires are over retirement age, according to a new study. The median age of the world's 3,194 billionaires is now 67 years old, data firm Altrata said in a report released Wednesday. The findings highlight the wide gap between the perception and reality of the world's billionaires. According to the report, the median age of the world's billionaires has actually increased slightly over the past five years. The U.S. still has the largest number of billionaires in the world by far, with 955, accounting for nearly one-third of the world's billionaires.

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Persons: Elon Musk, Mark Zuckerberg, Altrata, Warren Buffett, Bernard Arnault, Imberg, it's, San Organizations: Hong Kong Locations: North America, Asia, Europe, U.S, China, New York, San Francisco, Moscow, London