G = M27xV9 is Direct product M27 x C_3 x C_3
G has 4 minimal generators, rank 4 and exponent 9. The centre has rank 3.
The 40 maximal subgroups are: Ab(9,3,3) (3x), M27xC3 (36x), V81.
There is one conjugacy class of maximal elementary abelian subgroups. Each maximal elementary abelian has rank 4.
At present no information on the cohomology ring.