title: List of Doraemon chapters
context: The Japanese children's manga series Doraemon was written and illustrated by Fujiko Fujio. It was serialized in various children's manga magazines published by Shogakukan. Total of eight-hundred and fifty chapters were collected in tankōbon by Shogakukan under Tentoumusi comics(てんとう虫コミックス) imprint. The first volume was published on July 31, 1974[1] and the last forty-fifth volume on April 26, 1996.[2] The series is about a robotic cat named Doraemon, who travels back in time from the 22nd century to aid a pre-teen boy called Nobita Nobi(野比 のび太,Nobi Nobita).
question: How many chapters did Doraemon have?
answers: eight-hundred and fifty chapters