678008068 has 48 divisors (see below), whose sum is σ = 1248597504. Its totient is φ = 321765120.

The previous prime is 678008033. The next prime is 678008069. The reversal of 678008068 is 860800876.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (678008069) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1817530 + ... + 1817902.

It is an arithmetic number, because the mean of its divisors is an integer number (26012448).

Almost surely, 2^678008068 is an apocalyptic number.

It is an amenable number.

678008068 is a deficient number, since it is larger than the sum of its proper divisors (570589436).

678008068 is a wasteful number, since it uses less digits than its factorization.

678008068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 678008068 is about 26038.5880569588. The cubic root of 678008068 is about 878.5064489919.

The spelling of 678008068 in words is "six hundred seventy-eight million, eight thousand, sixty-eight".