A positive ion A and a negative ion B has charges 6.67 × 10^–19 C and 9.6 × 10^–10 C, and masses 19.2 × 10^–27 kg and 9 × 10^–27 kg respectively. At an instant, the ions are separated by a certain distance r. At that instant the ratio of the magnitudes of electrostatic force to gravitational force is P × 10⁴⁴, where the value of P is ____. (Take $\frac{1}{4{\mathrm{\pi \epsilon }}_0}=9\times {10}^9{\mathrm{Nm}}^2{\mathrm{C}}^{-1}$ and universal gravitational constant as 6.67 × 10^–11 Nm² kg^–2)