686602868060 has 24 divisors (see below), whose sum is σ = 1451542982400. Its totient is φ = 272797916864.

The previous prime is 686602868033. The next prime is 686602868087. The reversal of 686602868060 is 60868206686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (686602868033) and next prime (686602868087).

It is a junction number, because it is equal to n+sod(n) for n = 686602867987 and 686602868005.

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, 115198844 + ... + 115204803.

It is an arithmetic number, because the mean of its divisors is an integer number (60480957600).

Almost surely, 2^686602868060 is an apocalyptic number.

It is an amenable number.

686602868060 is an abundant number, since it is smaller than the sum of its proper divisors (764940114340).

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

686602868060 is a wasteful number, since it uses less digits than its factorization.

686602868060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230403805 (or 230403803 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 56.

The spelling of 686602868060 in words is "six hundred eighty-six billion, six hundred two million, eight hundred sixty-eight thousand, sixty".