86578687568 has 10 divisors (see below), whose sum is σ = 167746207194. Its totient is φ = 43289343776.

The previous prime is 86578687561. The next prime is 86578687571.

86578687568 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 75387586624 + 11191100944 = 274568^2 + 105788^2 .

It is a super-3 number, since 3×86578687568³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86578687495 and 86578687504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86578687561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2705583971 + ... + 2705584002.

Almost surely, 2^86578687568 is an apocalyptic number.

It is an amenable number.

86578687568 is a deficient number, since it is larger than the sum of its proper divisors (81167519626).

86578687568 is a wasteful number, since it uses less digits than its factorization.

86578687568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411167981 (or 5411167975 counting only the distinct ones).

The product of its digits is 1083801600, while the sum is 74.

The spelling of 86578687568 in words is "eighty-six billion, five hundred seventy-eight million, six hundred eighty-seven thousand, five hundred sixty-eight".