Variable: most-positive-fixnum
most-positive-fixnum is a variable defined in data.c.
Value
2305843009213693951
Documentation
The greatest integer that is represented efficiently.
This variable cannot be set; trying to do so will signal an error.
Probably introduced at or before Emacs version 22.1.
Source Code
// Defined in /usr/src/emacs/src/data.c
DEFVAR_LISP ("most-positive-fixnum", Vmost_positive_fixnum,
doc: /* The greatest integer that is represented efficiently.
This variable cannot be set; trying to do so will signal an error. */);