trililhão

Trililhão is a term referring to a very large number, specifically one followed by twenty-four zeros. This is represented numerically as 10^24. In the short scale system of number naming, commonly used in English-speaking countries, this number is called a septillion. However, the term trililhão belongs to the long scale system, which is prevalent in many European countries. In the long scale, each new "-illion" name represents a number a million times larger than the previous one, whereas in the short scale, each new "-illion" name represents a number a thousand times larger than the previous one, with "million" being the exception.

The structure of the long scale is as follows: million (10^6), billion (10^12), trillion (10^18), quadrillion (10^24), quintillion (10^30), sextillion (10^36), septillion (10^42), octillion (10^48), nonillion (10^54), decillion (10^60), and so on. Therefore, in the long scale system, a trililhão (10^18) is followed by a quadrilhão (10^24), which is the number represented by the English septillion. The term "trililhão" itself is a direct borrowing or adaptation of the "trillion" concept from the long scale system. It is important to distinguish between the short scale and long scale when discussing such large numbers to avoid confusion.