686110580 has 48 divisors (see below), whose sum is σ = 1482909120. Its totient is φ = 266504448.

The previous prime is 686110553. The next prime is 686110589. The reversal of 686110580 is 85011686.

It is a self number, because there is not a number n which added to its sum of digits gives 686110580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686110589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151712 + ... + 156168.

It is an arithmetic number, because the mean of its divisors is an integer number (30893940).

Almost surely, 2^686110580 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 686110580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741454560).

686110580 is an abundant number, since it is smaller than the sum of its proper divisors (796798540).

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

686110580 is a wasteful number, since it uses less digits than its factorization.

686110580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688 (or 4686 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 686110580 is about 26193.7126043637. The cubic root of 686110580 is about 881.9921208395.

The spelling of 686110580 in words is "six hundred eighty-six million, one hundred ten thousand, five hundred eighty".