A number is a special data type (data_type). There are fixed point and floating point numbers:

A fixed point number is described by the number of significant digits and the number of decimal places. The maximum number of significant digits is

`38`.A floating point number consists of a mantissa and an exponent. The mantissa may have up to

`38`significant digits. The valid range of values for floating point numbers consists of the intervals from`-9.9999999999999999999999999999999999999E+62`to`-1E-64`and from`+1E-64`to`+9.9999999999999999999999999999999999999E+62`and the value`0.0`.Example: FLOAT

All numbers can be compared to one another.