678910659628 has 6 divisors (see below), whose sum is σ = 1188093654356. Its totient is φ = 339455329812.

The previous prime is 678910659551. The next prime is 678910659631. The reversal of 678910659628 is 826956019876.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84863832450 + ... + 84863832457.

Almost surely, 2^678910659628 is an apocalyptic number.

It is an amenable number.

678910659628 is a deficient number, since it is larger than the sum of its proper divisors (509182994728).

678910659628 is a wasteful number, since it uses less digits than its factorization.

678910659628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169727664911 (or 169727664909 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 678910659628 in words is "six hundred seventy-eight billion, nine hundred ten million, six hundred fifty-nine thousand, six hundred twenty-eight".