878681856 has 288 divisors, whose sum is σ = 2769113088. Its totient is φ = 244776960.

The previous prime is 878681821. The next prime is 878681861. The reversal of 878681856 is 658186878.

878681856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 878681796 and 878681805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5261485 + ... + 5261651.

It is an arithmetic number, because the mean of its divisors is an integer number (9614976).

Almost surely, 2^878681856 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 878681856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384556544).

878681856 is an abundant number, since it is smaller than the sum of its proper divisors (1890431232).

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

878681856 is a wasteful number, since it uses less digits than its factorization.

878681856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 233 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 57.

The square root of 878681856 is about 29642.5683097804. The cubic root of 878681856 is about 957.8052640328.

The spelling of 878681856 in words is "eight hundred seventy-eight million, six hundred eighty-one thousand, eight hundred fifty-six".