678854768 has 20 divisors (see below), whose sum is σ = 1322889288. Its totient is φ = 337464000.

The previous prime is 678854749. The next prime is 678854773. The reversal of 678854768 is 867458876.

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 3 ways as a sum of consecutive naturals, for example, 119858 + ... + 125393.

Almost surely, 2^678854768 is an apocalyptic number.

It is an amenable number.

678854768 is a deficient number, since it is larger than the sum of its proper divisors (644034520).

678854768 is a wasteful number, since it uses less digits than its factorization.

678854768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245432 (or 245426 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 59.

The square root of 678854768 is about 26054.8415462463. The cubic root of 678854768 is about 878.8719913438.

The spelling of 678854768 in words is "six hundred seventy-eight million, eight hundred fifty-four thousand, seven hundred sixty-eight".