6868180818686 has 16 divisors (see below), whose sum is σ = 11626387593840. Its totient is φ = 3014248634880.

The previous prime is 6868180818673. The next prime is 6868180818703.

6868180818686 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5382586211 + ... + 5382587486.

It is an arithmetic number, because the mean of its divisors is an integer number (726649224615).

Almost surely, 2^{6868180818686} is an apocalyptic number.

6868180818686 is a deficient number, since it is larger than the sum of its proper divisors (4758206775154).

6868180818686 is a wasteful number, since it uses less digits than its factorization.

6868180818686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10765173739.

The product of its (nonzero) digits is 339738624, while the sum is 74.

The spelling of 6868180818686 in words is "six trillion, eight hundred sixty-eight billion, one hundred eighty million, eight hundred eighteen thousand, six hundred eighty-six".