Age of the universe: 13,799,000,000 years
Number of neurons in a human’s cerebral cortex: 16,000,000,000
Number of neurons in a long-finned pilot whale’s cerebral cortex: 37,200,000,000
Mass of an electron: 0.000000000000000000000000000000910938356kg
Mass of the Earth: 5,972,000,000,000,000,000,000,000kg
Mass of the Sun: 1,989,000,000,000,000,000,000,000,000,000kg