With an estimated number of adherents that ranges between NUMBER@1 billionAdherents.com Number of MISC@1 in the world and NUMBER@2 billion , split into around NUMBER@3 separate denominations , Christianity is the world 's largest religion .

Demographics With an estimated number of MISC@1 being somewhere around NUMBER@1 billion to NUMBER@2 billion , split into around NUMBER@3 different denominations , Christianity is the world 's largest religion .
