868505180 has 48 divisors (see below), whose sum is σ = 1939031136. Its totient is φ = 325632000.

The previous prime is 868505179. The next prime is 868505203. The reversal of 868505180 is 81505868.

868505180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80252 + ... + 90428.

It is an arithmetic number, because the mean of its divisors is an integer number (40396482).

Almost surely, 2^868505180 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 868505180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969515568).

868505180 is an abundant number, since it is smaller than the sum of its proper divisors (1070525956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868505180 is a wasteful number, since it uses less digits than its factorization.

868505180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454 (or 10452 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 868505180 is about 29470.4119414711. The cubic root of 868505180 is about 954.0932083144.

The spelling of 868505180 in words is "eight hundred sixty-eight million, five hundred five thousand, one hundred eighty".