Answer
Six hundred seventy-eight thousand, five hundred fifty-four billionths
Work Step by Step
The place value for the rightmost digit in 0.000678554 is "billionths".
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.