678916280 has 64 divisors (see below), whose sum is σ = 1753202880. Its totient is φ = 231782400.

The previous prime is 678916211. The next prime is 678916291. The reversal of 678916280 is 82619876.

678916280 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.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62450 + ... + 72510.

It is an arithmetic number, because the mean of its divisors is an integer number (27393795).

Almost surely, 2^678916280 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 678916280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (876601440).

678916280 is an abundant number, since it is smaller than the sum of its proper divisors (1074286600).

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

678916280 is a wasteful number, since it uses less digits than its factorization.

678916280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10320 (or 10316 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 678916280 is about 26056.0219527080. The cubic root of 678916280 is about 878.8985358242.

The spelling of 678916280 in words is "six hundred seventy-eight million, nine hundred sixteen thousand, two hundred eighty".