Deuring, Max
Die Typen der Multiplikatorenringe elliptischer Funktionenkörper.
Abh. Math. Sem. Hansischen Univ. 14, (1941). 197--272.

This number of point is reached by the curve

y^2=x^3+(1/4)*x^2+a^{508237}*x+a^1608725, where a satisfies the minimal polynomial X^5+5*X+17 in F_19[X].