613686686316 has 72 divisors (see below), whose sum is σ = 1574240934000. Its totient is φ = 185930785920.

The previous prime is 613686686299. The next prime is 613686686387.

613686686316 is nontrivially palindromic in base 10.

613686686316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×613686686316² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 613686686316.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8310790 + ... + 8384306.

Almost surely, 2^613686686316 is an apocalyptic number.

613686686316 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

613686686316 is an abundant number, since it is smaller than the sum of its proper divisors (960554247684).

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

613686686316 is a wasteful number, since it uses less digits than its factorization.

613686686316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79295 (or 79282 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 60.

The spelling of 613686686316 in words is "six hundred thirteen billion, six hundred eighty-six million, six hundred eighty-six thousand, three hundred sixteen".