这几个数字用英语怎样说

8'764'267'251 eight billion seven hundred and sixty four million two hundred and sixty seven thousand two hundred and fifty one

87'642 eighty seven thousand six hundred and forty two

67'251 sixty-seven thousand two hundred and fifty one

9'631 nine thousand six hundred and thirty one

其实英语数字是3个一段，分开就好说了，祝英语越来越好！

eighty-seven thousand six hundred and forty-two

sixty-seven thousand two hundred and fifty-one

nine thousand six hundred and thirty-one

1.eight billion,seven hundred and sixty-four million,two hundred and sixty-seven thousand,two hundred and fifty-one.

2.nine thousand six hundred and thirty-one

Eight point seven billion, sixty-four million, two hundred sixty-seven thousand, two hundred and fifty one.
Nine thousand six hundred thirty one.