Most Important Numbers In The World."[4] Here are the top ten numbers , according to Ben Duronio and Walter Hickey of the Business Insider: •  Pi (π), also known as Archimedes ' Constant, 3.14159265... •  e , also known as Euler's Constant, 2.718281828...[5] •  The Golden Ratio (ϕ), 1.6180339887... •  Planck