%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-3-29 on page I-173 in "Customizing numerical data representation".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{135.0pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
  \usepackage{siunitx}
%StopShownPreambleCommands

\begin{document}
  German:     \hfill \num{4 276 928 295,32}     \\[8pt]
  \sisetup{input-ignore=. ,input-decimal-markers={,}}
  Spanish:    \hfill \num{4.276.928.295,32}     \\[8pt]
  \sisetup{input-ignore={,} ,input-decimal-markers=.}
  English:    \hfill \num{4,276,928,295.32}     \\[8pt]
  \sisetup{parse-numbers=false}
  Not parsed: \hfill \num{4,276,928,295.32}     \\[8pt]
  Not parsed: \hfill \qty{\sqrt{2+\text{offset}}}{\metre}
\end{document}