686603107008 has 560 divisors, whose sum is σ = 2636869016320. Its totient is φ = 171549259776.

The previous prime is 686603106997. The next prime is 686603107019. The reversal of 686603107008 is 800701306686.

It is an interprime number because it is at equal distance from previous prime (686603106997) and next prime (686603107019).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8924835 + ... + 9001437.

It is an arithmetic number, because the mean of its divisors is an integer number (4708694672).

Almost surely, 2^686603107008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686603107008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318434508160).

686603107008 is an abundant number, since it is smaller than the sum of its proper divisors (1950265909312).

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

686603107008 is a wasteful number, since it uses less digits than its factorization.

686603107008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76666 (or 76647 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 686603107008 in words is "six hundred eighty-six billion, six hundred three million, one hundred seven thousand, eight".