8686238326868 has 6 divisors (see below), whose sum is σ = 15200917072026. Its totient is φ = 4343119163432.

The previous prime is 8686238326861. The next prime is 8686238326897.

It is a happy number.

8686238326868 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 6719563052944 + 1966675273924 = 2592212^2 + 1402382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8686238326795 and 8686238326804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8686238326861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085779790855 + ... + 1085779790862.

It is an arithmetic number, because the mean of its divisors is an integer number (2533486178671).

Almost surely, 2^{8686238326868} is an apocalyptic number.

It is an amenable number.

8686238326868 is a deficient number, since it is larger than the sum of its proper divisors (6514678745158).

8686238326868 is a wasteful number, since it uses less digits than its factorization.

8686238326868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171559581721 (or 2171559581719 counting only the distinct ones).

The product of its digits is 1528823808, while the sum is 74.

The spelling of 8686238326868 in words is "eight trillion, six hundred eighty-six billion, two hundred thirty-eight million, three hundred twenty-six thousand, eight hundred sixty-eight".