The equation \( k = (6.5 \times 10^{12}\, \text{s}^{-1}) e^{-26000\, \text{K}/T} \) is followed for the decomposition of compound A.
The activation energy for the reaction is ______ \( \text{kJ} \, \text{mol}^{-1} \). [Nearest integer]
(Given: \( R = 8.314 \, \text{J} \, \text{K}^{-1} \, \text{mol}^{-1} \) )