Which of these nerves is the longest cranial nerve in the human body?

There are two types of nerves in our body, cranial nerves originating from brain, and spinal nerves originating from spinal cord.There are twelve cranial nerves written in roman numbers starting with I which is olfactory nerve,and the last one XII which is hypoglossal nerve. Vagus nerve which is the tenth cranial nerve X is the longest among cranial nerves, originates from brain stem, passing downward to abdomen. Vagus nerve innervate many organs including esophagus, heart, and lungs. It is also involved in autonomous or involuntary nervous system, to commands and controls unconscious procedures such as heart rate and food digestion.Vagus is a singular word, plural "vagi" meaning in latin "wandering" or straying".