686115611334 has 12 divisors (see below), whose sum is σ = 1486583824596. Its totient is φ = 228705203772.

The previous prime is 686115611333. The next prime is 686115611339. The reversal of 686115611334 is 433116511686.

686115611334 is a `hidden beast` number, since 6 + 86 + 1 + 1 + 561 + 1 + 3 + 3 + 4 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 686115611334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686115611333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19058766964 + ... + 19058766999.

It is an arithmetic number, because the mean of its divisors is an integer number (123881985383).

Almost surely, 2^686115611334 is an apocalyptic number.

686115611334 is an abundant number, since it is smaller than the sum of its proper divisors (800468213262).

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

686115611334 is a wasteful number, since it uses less digits than its factorization.

686115611334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38117533971 (or 38117533968 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 686115611334 in words is "six hundred eighty-six billion, one hundred fifteen million, six hundred eleven thousand, three hundred thirty-four".