number — convert Arabic numerals to English

       Although number understand fractions, it doesn't understand exponents.

Debian                                           March 31, 1994                                        NUMBER(6)

       The  number  utility  prints  the English equivalent of the number to the standard output, with each 10^3
       magnitude displayed on a separate line.  If no  argument  is  specified,  number  reads  lines  from  the
       standard input.

       The options are as follows:

       -l      Display the number on a single line.

       number — convert Arabic numerals to English

number [-l] [number...]