How many Times brighter are blue super-giants compared to the sun?

Blue supergiants can be anywhere from 10,000 to 1,000,000 times brighter than the Sun, depending on their specific type and stage in the stellar evolution process. Generally, their luminosity is significantly higher due to their large mass and high temperatures. For instance, a prominent blue supergiant like Rigel is about 120,000 times more luminous than the Sun.