686636059032 has 192 divisors, whose sum is σ = 2375061212160. Its totient is φ = 173997043200.

The previous prime is 686636059027. The next prime is 686636059033. The reversal of 686636059032 is 230950636686.

It is a self number, because there is not a number n which added to its sum of digits gives 686636059032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686636059033) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1283088 + ... + 1737695.

It is an arithmetic number, because the mean of its divisors is an integer number (12370110480).

Almost surely, 2^686636059032 is an apocalyptic number.

It is an amenable number.

686636059032 is an abundant number, since it is smaller than the sum of its proper divisors (1688425153128).

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

686636059032 is a wasteful number, since it uses less digits than its factorization.

686636059032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020854 (or 3020847 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 686636059032 in words is "six hundred eighty-six billion, six hundred thirty-six million, fifty-nine thousand, thirty-two".