678142312 has 16 divisors (see below), whose sum is σ = 1272765600. Its totient is φ = 338738160.

The previous prime is 678142279. The next prime is 678142321. The reversal of 678142312 is 213241876.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32862 + ... + 49357.

It is an arithmetic number, because the mean of its divisors is an integer number (79547850).

Almost surely, 2^678142312 is an apocalyptic number.

It is an amenable number.

678142312 is a deficient number, since it is larger than the sum of its proper divisors (594623288).

678142312 is a wasteful number, since it uses less digits than its factorization.

678142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83256 (or 83252 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 678142312 is about 26041.1657189151. The cubic root of 678142312 is about 878.5644259013.

The spelling of 678142312 in words is "six hundred seventy-eight million, one hundred forty-two thousand, three hundred twelve".