Some bonus info

Fukurokumaru is written 福禄丸

福 - Blessing, Fortune, Luck (This is also what's on his forehead)

禄 - Allowance, Grant, Happiness, Reward

丸 - Round, Perfection (also as a slang-y term for "money" and a common component in names)

Written on the ingot he holds is 千万両

千 - 1 thousand

万 - 10 thousand

千万　- 10 million or "very many"

両 - Ryou - the old japanese coins that ingots look like