From Clomosy Docs

The IntToStr function converts an Integer Number or Int64 BigNumber into a string. It has two forms : the latter supporting very large integers. It is normally used for display purposes.

Example

var
   NormalInteger : Integer;
   BigInteger    : Int64;
{
   NormalInteger = 1234656789;          // Largest possible Integer value
   BigInteger    = 1234656789123465681; // Largest possible Int64 value
 
   ShowMessage('NormalInteger :     '+IntToStr(NormalInteger));
   ShowMessage('BigInteger :        '+IntToStr(BigInteger));
   ShowMessage('Calculated number : '+IntToStr(27 * 4));
}

Output:

See Also