Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How much Withdrawn has a Number of 42, and a Previous Number(s) larger than 68178?

### Inputs:
table_name: table, columns: ['Number', 'Previous Number(s)', 'Previous Class', 'Converted', 'Withdrawn', 'Disposal']

### Response:
SELECT SUM Withdrawn FROM table WHERE Number = 42 AND Previous Number(s) > 68178