678956180 has 24 divisors (see below), whose sum is σ = 1629495168. Its totient is φ = 232784928.

The previous prime is 678956167. The next prime is 678956191. The reversal of 678956180 is 81659876.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2424704 + ... + 2424983.

It is an arithmetic number, because the mean of its divisors is an integer number (67895632).

Almost surely, 2^678956180 is an apocalyptic number.

It is an amenable number.

678956180 is an abundant number, since it is smaller than the sum of its proper divisors (950538988).

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

678956180 is a wasteful number, since it uses less digits than its factorization.

678956180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849703 (or 4849701 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 678956180 is about 26056.7875993953. The cubic root of 678956180 is about 878.9157531481.

The spelling of 678956180 in words is "six hundred seventy-eight million, nine hundred fifty-six thousand, one hundred eighty".