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