Although both Mesopotamia and ancient Egypt practiced polytheism, which is they believe in multiple gods and goddesses, they had many differences. Mesopotamia and ancient Egypt worshipped different gods and goddesses.
In ancient Egypt, the leader, Pharaoh, is considered a god. The Pharaoh had rights and control throughout Egypt, but in Mesopotamia, the leader is regarded as an intermediary between God and the people.
The leaders were interpreters of divine rules, but they were not considered gods. In Mesopotamia, different cities worshipped different gods. Egyptians believed in the afterlife and resurrection of the dead.
For this reason, Pharaohs were preserved in mummy with all the things necessary for daily use. Mesopotamia religion did not believe in an afterlife.