686967807084 has 96 divisors (see below), whose sum is σ = 1755905356800. Its totient is φ = 207754702848.

The previous prime is 686967806981. The next prime is 686967807091. The reversal of 686967807084 is 480708769686.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4619757 + ... + 4766139.

It is an arithmetic number, because the mean of its divisors is an integer number (18290680800).

Almost surely, 2^686967807084 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 686967807084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877952678400).

686967807084 is an abundant number, since it is smaller than the sum of its proper divisors (1068937549716).

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

686967807084 is a wasteful number, since it uses less digits than its factorization.

686967807084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146919 (or 146917 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 69.

The spelling of 686967807084 in words is "six hundred eighty-six billion, nine hundred sixty-seven million, eight hundred seven thousand, eighty-four".