Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_19542477_9 (whole_weeks INTEGER)
### Question:
What is the longest number of weeks any 1 song was at number #1?
### Answer:
SELECT MAX(whole_weeks) FROM table_19542477_9