1808343416686 has 32 divisors (see below), whose sum is σ = 2895815325312. Its totient is φ = 843976558080.

The previous prime is 1808343416651. The next prime is 1808343416701. The reversal of 1808343416686 is 6866143438081.

It is a self number, because there is not a number n which added to its sum of digits gives 1808343416686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1858180 + ... + 2658856.

It is an arithmetic number, because the mean of its divisors is an integer number (90494228916).

Almost surely, 2^{1808343416686} is an apocalyptic number.

1808343416686 is a deficient number, since it is larger than the sum of its proper divisors (1087471908626).

1808343416686 is a wasteful number, since it uses less digits than its factorization.

1808343416686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801244.

The product of its (nonzero) digits is 15925248, while the sum is 58.

The spelling of 1808343416686 in words is "one trillion, eight hundred eight billion, three hundred forty-three million, four hundred sixteen thousand, six hundred eighty-six".