688881319374 has 32 divisors (see below), whose sum is σ = 1470702908160. Its totient is φ = 214477502400.

The previous prime is 688881319349. The next prime is 688881319381. The reversal of 688881319374 is 473913188886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42546967 + ... + 42563154.

It is an arithmetic number, because the mean of its divisors is an integer number (45959465880).

Almost surely, 2^688881319374 is an apocalyptic number.

688881319374 is an abundant number, since it is smaller than the sum of its proper divisors (781821588786).

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

688881319374 is a wasteful number, since it uses less digits than its factorization.

688881319374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85110216.

The product of its digits is 55738368, while the sum is 66.

The spelling of 688881319374 in words is "six hundred eighty-eight billion, eight hundred eighty-one million, three hundred nineteen thousand, three hundred seventy-four".