1687369986188 has 12 divisors (see below), whose sum is σ = 2976148637952. Its totient is φ = 837041803920.

The previous prime is 1687369986121. The next prime is 1687369986199. The reversal of 1687369986188 is 8816899637861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660796723 + ... + 1660797738.

It is an arithmetic number, because the mean of its divisors is an integer number (248012386496).

Almost surely, 2^{1687369986188} is an apocalyptic number.

It is an amenable number.

1687369986188 is a deficient number, since it is larger than the sum of its proper divisors (1288778651764).

1687369986188 is a wasteful number, since it uses less digits than its factorization.

1687369986188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321594592 (or 3321594590 counting only the distinct ones).

The product of its digits is 1504935936, while the sum is 80.

The spelling of 1687369986188 in words is "one trillion, six hundred eighty-seven billion, three hundred sixty-nine million, nine hundred eighty-six thousand, one hundred eighty-eight".