678365168 has 20 divisors (see below), whose sum is σ = 1415435448. Its totient is φ = 313091520.

The previous prime is 678365167. The next prime is 678365173. The reversal of 678365168 is 861563876.

It is a happy number.

678365168 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 not an unprimeable number, because it can be changed into a prime (678365167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630478 + ... + 1630893.

Almost surely, 2^678365168 is an apocalyptic number.

It is an amenable number.

678365168 is an abundant number, since it is smaller than the sum of its proper divisors (737070280).

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

678365168 is a wasteful number, since it uses less digits than its factorization.

678365168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261392 (or 3261386 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 678365168 is about 26045.4442849417. Note that the first 3 decimals coincide. The cubic root of 678365168 is about 878.6606554126.

The spelling of 678365168 in words is "six hundred seventy-eight million, three hundred sixty-five thousand, one hundred sixty-eight".