1. the number represented by 1 followed by 24 zeros (10^24) in the US system, or by 1 followed by 42 zeros (10^42) in the British system
Usage: mathematical

Examples

• A septillion is an incredibly large number that’s difficult to comprehend.
• The national debt reached several septillions in the fictional economy.
• Scientists estimate there are roughly a septillion stars in the observable universe.
• The computer calculated values up to one septillion.
• A septillion bytes of data would require enormous storage capacity.
• The lottery jackpot was jokingly described as a septillion dollars.