Singular Matrices Only

$A = \begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{bmatrix} ; B = \begin{bmatrix} a & b & c \\ d & e & f \\ g & h & i \end{bmatrix} ; C = \begin{bmatrix} \overline{1a} & \overline{2b} & \overline{3c} \\ \overline{4d} & \overline{5e} & \overline{6f} \\ \overline{7g} & \overline{8h} & \overline{9i} \end{bmatrix}$

The $3\times 3$ matrices $A$ & $B$ consist of distinct digits from 1-9, denoted as $a$ to $i$ in $B$ , and the determinant of each matrix equals to 0. On the other hand, the matrix $C$ is constructed by adding each of B's digits next to A's at the same position ( $C$ = 10 $A$ + $B$ ), creating new 2-digit numbers with the following conditions:

• The matrix C is also non-invertible.
• There are 3 prime members in C.
• $b$ + $d$ + $f$ + $h$ = $4e$ and $b|e$
• $\overline{1a}$ $\mid$ $\overline{9i}$ ; $\overline{3c}$ $\mid$ $\overline{7g}$

What is the value of $\overline{abcdefghi}$ ?