nine billion nine hundred ninety nine million nine hundred ninety nine thousand four hundred ninety seven Pronunciation in english(IPA) :
nʌɪn ˈbɪljən nʌɪn ˈhʌndrəd ˈnʌɪnti nʌɪn ˈmɪljən nʌɪn ˈhʌndrəd ˈnʌɪnti nʌɪn ˈθaʊz(ə)nd fɔː ˈhʌndrəd ˈnʌɪnti ˈsɛv(ə)n