686764677339 has 48 divisors (see below), whose sum is σ = 1102971950080. Its totient is φ = 408913479360.

The previous prime is 686764677337. The next prime is 686764677359. The reversal of 686764677339 is 933776467686.

686764677339 is a `hidden beast` number, since 6 + 8 + 67 + 6 + 467 + 73 + 39 = 666.

It is not a de Polignac number, because 686764677339 - 2¹ = 686764677337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (686764677337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23121792 + ... + 23151474.

Almost surely, 2^686764677339 is an apocalyptic number.

686764677339 is a deficient number, since it is larger than the sum of its proper divisors (416207272741).

686764677339 is a wasteful number, since it uses less digits than its factorization.

686764677339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36112 (or 36109 counting only the distinct ones).

The product of its digits is 1152216576, while the sum is 72.

The spelling of 686764677339 in words is "six hundred eighty-six billion, seven hundred sixty-four million, six hundred seventy-seven thousand, three hundred thirty-nine".