It is a happy number.
It is a zygodrome in base 4.
It is a congruent number.
In principle, a polygon with 5389680640 sides can be constructed with ruler and compass.
Almost surely, 25389680640 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 5389680640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6492781818).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5389680640 is an frugal number, since it uses more digits than its factorization.
5389680640 is an evil number, because the sum of its binary digits is even.
The square root of 5389680640 is about 73414.4443553174. Note that the first 3 decimals coincide. The cubic root of 5389680640 is about 1753.2923750434.
The spelling of 5389680640 in words is "five billion, three hundred eighty-nine million, six hundred eighty thousand, six hundred forty".