688685331003 has 8 divisors (see below), whose sum is σ = 928564491600. Its totient is φ = 453964862208.

The previous prime is 688685330929. The next prime is 688685331023. The reversal of 688685331003 is 300133586886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 688685331003 - 2¹⁰ = 688685329979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688685331023) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1289672638 + ... + 1289673171.

It is an arithmetic number, because the mean of its divisors is an integer number (116070561450).

Almost surely, 2^688685331003 is an apocalyptic number.

688685331003 is a deficient number, since it is larger than the sum of its proper divisors (239879160597).

688685331003 is a wasteful number, since it uses less digits than its factorization.

688685331003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579345901.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 688685331003 in words is "six hundred eighty-eight billion, six hundred eighty-five million, three hundred thirty-one thousand, three".