(1)四百五十亿六千零八万九千写作:45060089000,
(2)二千三百亿五千六百万写作:230056000000,
(3)230056000000≈2301亿,
(4)194350000读作:一亿九千四百三十五万,
(5)194350000=19435万,
故答案为:45060089000,230056000000,2301,一亿九千四百三十五万,19435.
(1)四百五十亿六千零八万九千写作:45060089000,
(2)二千三百亿五千六百万写作:230056000000,
(3)230056000000≈2301亿,
(4)194350000读作:一亿九千四百三十五万,
(5)194350000=19435万,
故答案为:45060089000,230056000000,2301,一亿九千四百三十五万,19435.