687108025168 has 40 divisors (see below), whose sum is σ = 1401400418720. Its totient is φ = 325457896320.

The previous prime is 687108025117. The next prime is 687108025171. The reversal of 687108025168 is 861520801786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10640338 + ... + 10704718.

It is an arithmetic number, because the mean of its divisors is an integer number (35035010468).

Almost surely, 2^687108025168 is an apocalyptic number.

It is an amenable number.

687108025168 is an abundant number, since it is smaller than the sum of its proper divisors (714292393552).

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

687108025168 is a wasteful number, since it uses less digits than its factorization.

687108025168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99515 (or 99509 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The spelling of 687108025168 in words is "six hundred eighty-seven billion, one hundred eight million, twenty-five thousand, one hundred sixty-eight".