1684686448684 has 12 divisors (see below), whose sum is σ = 2950499190744. Its totient is φ = 841686679904.

The previous prime is 1684686448633. The next prime is 1684686448691. The reversal of 1684686448684 is 4868446864861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164130337 + ... + 164140600.

It is an arithmetic number, because the mean of its divisors is an integer number (245874932562).

Almost surely, 2^{1684686448684} is an apocalyptic number.

It is an amenable number.

1684686448684 is a deficient number, since it is larger than the sum of its proper divisors (1265812742060).

1684686448684 is a wasteful number, since it uses less digits than its factorization.

1684686448684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328272224 (or 328272222 counting only the distinct ones).

The product of its digits is 1358954496, while the sum is 73.

The spelling of 1684686448684 in words is "one trillion, six hundred eighty-four billion, six hundred eighty-six million, four hundred forty-eight thousand, six hundred eighty-four".