44677778888 has 12 divisors (see below), whose sum is σ = 83771956395.
Its totient is φ = 22338590520.
The previous prime is 44677778879. The next prime is 44677778909. The reversal of 44677778888 is 88887777644.
It is a powerful number, because all its prime factors have an exponent greater than 1
and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in only one way, i.e., 22338889444 + 22338889444 = 149462^2 + 149462^2
It is an ABA number since it can be written as A⋅BA, here for A=2, B=149462.
It is a super-2 number, since 2×446777788882 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a plaindrome in base 10.
It is an unprimeable number.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 560483 + ... + 635213.
Almost surely, 244677778888 is an apocalyptic number.
It is an amenable number.
44677778888 is a deficient number, since it is larger than the sum of its proper divisors (39094177507).
44677778888 is an frugal number, since it uses more digits than its factorization.
44677778888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 149468 (or 74733 counting only the distinct ones).
The product of its digits is 944111616, while the sum is 74.
The spelling of 44677778888 in words is "forty-four billion, six hundred seventy-seven million, seven hundred seventy-eight thousand, eight hundred eighty-eight".