It is a happy number.
43638476007744 is a `hidden beast` number, since 436 + 38 + 4 + 7 + 60 + 0 + 77 + 44 = 666.
43638476007744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
Almost surely, 243638476007744 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 43638476007744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62786995498656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43638476007744 is a wasteful number, since it uses less digits than its factorization.
43638476007744 is an odious number, because the sum of its binary digits is odd.
The spelling of 43638476007744 in words is "forty-three trillion, six hundred thirty-eight billion, four hundred seventy-six million, seven thousand, seven hundred forty-four".