Pattern Recognition -260

Find out the next number in the series.
46 , 78 , 168 , 932 ,_,...........................

Answer

46 , 78 , 168 , 932 ,_,...........................

4    8    16     32   ................... Next number  64 

6    7     8      9    ...................  Next number  10 

Next number in the series   6410

46 , 78 , 168 , 932 ,6410,...........................