86668486668 has 18 divisors (see below), whose sum is σ = 219078674724. Its totient is φ = 28889495544.

The previous prime is 86668486661. The next prime is 86668486673.

86668486668 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×86668486668² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86668486596 and 86668486605.

It is not an unprimeable number, because it can be changed into a prime (86668486661) 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, 1203728946 + ... + 1203729017.

Almost surely, 2^86668486668 is an apocalyptic number.

It is an amenable number.

86668486668 is an abundant number, since it is smaller than the sum of its proper divisors (132410188056).

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

86668486668 is a wasteful number, since it uses less digits than its factorization.

86668486668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407457973 (or 2407457968 counting only the distinct ones).

The product of its digits is 764411904, while the sum is 72.

The spelling of 86668486668 in words is "eighty-six billion, six hundred sixty-eight million, four hundred eighty-six thousand, six hundred sixty-eight".