```{index} single: isbig (Scalar::Util::Numeric) ``` ```{index} single: Scalar::Util::Numeric::isbig ``` # isbig Whether a value is a number larger than the unsigned range. ## Synopsis ```perl use Scalar::Util::Numeric qw(isbig); isbig("18446744073709551616"); # 1 ``` ## What you get back 1 when the number's integer part exceeds the largest unsigned integer, else 0.