28632+14281-21632(48609+387523)-38609

Let's solve the expression step by step.

1. Calculate the parentheses: \[ 48609 + 387523 = 436132 \]

2. Now substitute this back into the expression: \[ 28632 + 14281 - 21632 \times 436132 - 38609 \]

3. Calculate the multiplication: \[ 21632 \times 436132 = 9443307844 \]

4. Now, substituting this value into the expression: \[ 28632 + 14281 - 9443307844 - 38609 \]

5. Simplify the addition and subtraction step by step:

   • First, add the first two numbers: \[ 28632 + 14281 = 42913 \]

   • Now, subtract 9443307844: \[ 42913 - 9443307844 = -9443307411 \]

   • Finally, subtract 38609: \[ -9443307411 - 38609 = -9443346020 \]

The final result is: \[ \boxed{-9443346020} \]