686602868059 has 8 divisors (see below), whose sum is σ = 690278941440. Its totient is φ = 682934866536.

The previous prime is 686602868033. The next prime is 686602868087. The reversal of 686602868059 is 950868206686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 686602868059 - 2¹⁷ = 686602736987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (686602868659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847349 + ... + 2187670.

It is an arithmetic number, because the mean of its divisors is an integer number (86284867680).

Almost surely, 2^686602868059 is an apocalyptic number.

686602868059 is a deficient number, since it is larger than the sum of its proper divisors (3676073381).

686602868059 is a wasteful number, since it uses less digits than its factorization.

686602868059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035929.

The product of its (nonzero) digits is 59719680, while the sum is 64.

The spelling of 686602868059 in words is "six hundred eighty-six billion, six hundred two million, eight hundred sixty-eight thousand, fifty-nine".