686055915412 has 96 divisors (see below), whose sum is σ = 1407316377600. Its totient is φ = 286581335040.

The previous prime is 686055915397. The next prime is 686055915439. The reversal of 686055915412 is 214519550686.

It is a self number, because there is not a number n which added to its sum of digits gives 686055915412.

It is a congruent number.

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, 285974589 + ... + 285976987.

It is an arithmetic number, because the mean of its divisors is an integer number (14659545600).

Almost surely, 2^686055915412 is an apocalyptic number.

It is an amenable number.

686055915412 is an abundant number, since it is smaller than the sum of its proper divisors (721260462188).

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

686055915412 is a wasteful number, since it uses less digits than its factorization.

686055915412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061 (or 4059 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 686055915412 in words is "six hundred eighty-six billion, fifty-five million, nine hundred fifteen thousand, four hundred twelve".