682728466618581 has 8 divisors (see below), whose sum is σ = 912296535993984. Its totient is φ = 454156354161120.

The previous prime is 682728466618573. The next prime is 682728466618609. The reversal of 682728466618581 is 185816664827286.

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

It is not a de Polignac number, because 682728466618581 - 2³ = 682728466618573 is a prime.

It is a super-2 number, since 2×682728466618581² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 682728466618497 and 682728466618506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682728466618181) 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, 248989227885 + ... + 248989230626.

It is an arithmetic number, because the mean of its divisors is an integer number (114037066999248).

Almost surely, 2^{682728466618581} is an apocalyptic number.

It is an amenable number.

682728466618581 is a deficient number, since it is larger than the sum of its proper divisors (229568069375403).

682728466618581 is a wasteful number, since it uses less digits than its factorization.

682728466618581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497978458971.

The product of its digits is 2972712960, while the sum is 78.

The spelling of 682728466618581 in words is "six hundred eighty-two trillion, seven hundred twenty-eight billion, four hundred sixty-six million, six hundred eighteen thousand, five hundred eighty-one".