686763548361 has 12 divisors (see below), whose sum is σ = 1082172864240. Its totient is φ = 416220332280.

The previous prime is 686763548323. The next prime is 686763548363. The reversal of 686763548361 is 163845367686.

686763548361 is a `hidden beast` number, since 6 + 8 + 67 + 6 + 35 + 483 + 61 = 666.

It is not a de Polignac number, because 686763548361 - 2²⁶ = 686696439497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (686763548363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3468502671 + ... + 3468502868.

It is an arithmetic number, because the mean of its divisors is an integer number (90181072020).

Almost surely, 2^686763548361 is an apocalyptic number.

It is an amenable number.

686763548361 is a deficient number, since it is larger than the sum of its proper divisors (395409315879).

686763548361 is a wasteful number, since it uses less digits than its factorization.

686763548361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6937005556 (or 6937005553 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 63.

The spelling of 686763548361 in words is "six hundred eighty-six billion, seven hundred sixty-three million, five hundred forty-eight thousand, three hundred sixty-one".