men with demons

In Bible there is a book called Matthew chapter 8:28-34, we read about a story of a men with demons. The men with demons is living in the burial caves and Jesus is crossing by. Jesus is asking the demons what is your name and it is answering "My name is Mob-there are so many of us" Mark 5:9. Here we can clearly see the human can possess of many devils at a time. Now the demons is begging Jesus not to send to their region. And there is herd of pigs in the other side. And now Jesus is ordering the demons to leave that man body and go into pigs.The demon from that one man has left him and went into all the pigs in that herds. And all the pigs fall in to the lake. So it is clearly written nearly 2000pigs(mark 5:13). So the demon from one man has gone into 2000 pigs. This shows the human can get possess of many demons at a time than animals. even one demon is in you means you cant go to heaven. So think about it?????