I'm getting Mach 1392 which is Massively Hypersonic+.
GBE of the Sun is 2.27e+41 joules. Mass of Sun is 1.989e+30 kg. A mass with that much kinetic energy would be moving at 477760.82 m/s, which is Mach 1392. I used this calculator, plugged in the Sun's mass, and the value of its GBE and got that velocity: