The square root of 44444448888889 is 6666667.
It is a Duffinian number.
It is a plaindrome in base 10.
Almost surely, 244444448888889 is an apocalyptic number.
44444448888889 is a gapful number since it is divisible by the number (49) formed by its first and last digit.
44444448888889 is the 6666667-th square number.
44444448888889 is the 3333334-th centered octagonal number.
It is an amenable number.
44444448888889 is an frugal number, since it uses more digits than its factorization.
44444448888889 is an evil number, because the sum of its binary digits is even.
The spelling of 44444448888889 in words is "forty-four trillion, four hundred forty-four billion, four hundred forty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".