Anyone wishing to hire the 59-year-old will also have to pay for five-star hotel accommodation, a first-class seat plus three in business class for members of his entourage.
According to reports, Brown's wife Sarah will also present awards at the events for an additional 12,800 pounds.
A spokesman for the former Prime Minister refused to deny the claims.
"Gordon is focused on his constituency work and completing his book on the financial crisis," The Sun quoted the spokesman, as saying.
The 64,000 pounds fee is far less than that commanded by former Prime Ministers Tony Blair and John Major.
Blair was reportedly paid 180,000 pounds for a half-hour speech in the Philippines. He has also accumulated private wealth of over 20 million pounds since leaving office in June 2007. (ANI)