686748822008 has 16 divisors (see below), whose sum is σ = 1315050936480. Its totient is φ = 336068572288.

The previous prime is 686748821971. The next prime is 686748822041. The reversal of 686748822008 is 800228847686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913229441 + ... + 913230192.

It is an arithmetic number, because the mean of its divisors is an integer number (82190683530).

Almost surely, 2^686748822008 is an apocalyptic number.

It is an amenable number.

686748822008 is a deficient number, since it is larger than the sum of its proper divisors (628302114472).

686748822008 is a wasteful number, since it uses less digits than its factorization.

686748822008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826459686 (or 1826459682 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 59.

The spelling of 686748822008 in words is "six hundred eighty-six billion, seven hundred forty-eight million, eight hundred twenty-two thousand, eight".