1868366866866 has 16 divisors (see below), whose sum is σ = 3741762993984. Its totient is φ = 621950745584.

The previous prime is 1868366866853. The next prime is 1868366866913. The reversal of 1868366866866 is 6686686638681.

It is a junction number, because it is equal to n+sod(n) for n = 1868366866791 and 1868366866800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209547681 + ... + 209556596.

It is an arithmetic number, because the mean of its divisors is an integer number (233860187124).

Almost surely, 2^{1868366866866} is an apocalyptic number.

1868366866866 is an abundant number, since it is smaller than the sum of its proper divisors (1873396127118).

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

1868366866866 is a wasteful number, since it uses less digits than its factorization.

1868366866866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419105025.

The product of its digits is 3439853568, while the sum is 78.

The spelling of 1868366866866 in words is "one trillion, eight hundred sixty-eight billion, three hundred sixty-six million, eight hundred sixty-six thousand, eight hundred sixty-six".