The longest novel ever has about 1,300,000 words, 4,211 pages and is called “In Search of Lost Time”.
Published in seven volumes, the novel contains 3,031 pages and 1,267,069 words (9,609,000 characters). It will take the average reader (at 300 words per minute), about 45 hours and 27 minutes to read the entire novel, excluding any meal and bathroom breaks, of course.