The percentage of people living in slums is estimated to be as high as 41.3% in Greater Mumbai, meaning that over 9 million people live in these areas. The number of people residing in slums throughout the entire country is estimated to be 104 million, or 9% of the total population of India. Dharavi is the largest slum in Mumbai and the second largest in Asia (after Orangi Town in Pakistan). It is estimated that one million people live in Dharavi, which spans just 535 acres, has a population density of an incredible 869,565 people per square mile. There are approximately 5,000 businesses and 15,000 single-room factories in Dharavi. The slum is the most literate in the country, with a literacy rate of 69%.