Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_10422 ( "Team" text, "Established" real, "Big Ten Conference Titles" real, "National Titles" real, "Venue" text, "Opened" real, "Capacity" real )

### Question ###
What is the smallest number of big ten conference titles for teams with a capacity of 60,670 and over 5 national titles?

### Accurate SQL ###

SELECT MIN("Big Ten Conference Titles") FROM table_10422 WHERE "Capacity" = '60,670' AND "National Titles" > '5'