It is a zygodrome in base 4.
It is an unprimeable number.
In principle, a polygon with 671098880 sides can be constructed with ruler and compass.
Almost surely, 2671098880 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
671098880 is an equidigital number, since it uses as much as digits as its factorization.
671098880 is an evil number, because the sum of its binary digits is even.
The square root of 671098880 is about 25905.5762336992. The cubic root of 671098880 is about 875.5121377382.
The spelling of 671098880 in words is "six hundred seventy-one million, ninety-eight thousand, eight hundred eighty".