title: List of longest novels
context: This is a list of the longest novels over 500,000 words published through a mainstream publisher. The longest novel is Artamène ou le Grand Cyrus, originally published (1649–54) in ten parts, each part in three volumes. Artamène is generally attributed to Madeleine de Scudéry.[1]
question: What is the longest novel ever written?
answers: Artamène ou le Grand Cyrus