this big acquisition, facebook acquiring whatsapp a text messaging application with 40 million users worldwide and great for international texting as chuck points out. this is the largest acquisition from facebook and latest move by zuckerberg to keep his company relevant in the ever changing social marketplace.gt.รท whatsapp charges a flat fee of a dollar a year. book is paying $4 billion in cash and purchase 12 billion worth of its share and the deal could be valid as highu(4 as $1 million. billion. exhume. whatsapp has 55 employees. that ams to $43 million per employee. when zuckerberg when they did their ipo, a lot of people said this young kid can t run a big company. the very way gerald sandburg.