WASHINGTON — No one ever accused Mike Bloomberg of being a piker, but the former mayor’s $27.7 million in federal political contributions this year placed him second among top donors — far behind a fellow billionaire from California.

An analysis by Politico found that retired San Francisco hedge fund executive Tom Steyer tore through $74.3 million to back liberal candidates who take climate change as seriously as he does.

Forbes says Steyer is worth $1.6 billion, while Bloomberg’s net worth was put at $35.5 billion.

Bloomberg donated to both liberal and conservative candidates who lined up with him on issues such as gun control and education reform.

In all, the top 100 donors shelled out $323 million to candidates in 2014, almost as much as the $356 million in smaller amounts given by nearly 5 million Americans.