1684793882018 has 16 divisors (see below), whose sum is σ = 2721723680760. Its totient is φ = 777559015296.

The previous prime is 1684793881949. The next prime is 1684793882059. The reversal of 1684793882018 is 8102883974861.

It can be written as a sum of positive squares in 4 ways, for example, as 1174022091529 + 510771790489 = 1083523^2 + 714683^2 .

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 7 ways as a sum of consecutive naturals, for example, 1046555 + ... + 2113022.

Almost surely, 2^{1684793882018} is an apocalyptic number.

1684793882018 is a deficient number, since it is larger than the sum of its proper divisors (1036929798742).

1684793882018 is a wasteful number, since it uses less digits than its factorization.

1684793882018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180101.

The product of its (nonzero) digits is 37158912, while the sum is 65.

The spelling of 1684793882018 in words is "one trillion, six hundred eighty-four billion, seven hundred ninety-three million, eight hundred eighty-two thousand, eighteen".