19893090118 has 16 divisors (see below), whose sum is σ = 32564347200. Its totient is φ = 9038975400.

The previous prime is 19893090097. The next prime is 19893090167. The reversal of 19893090118 is 81109039891.

It is a happy number.

It is a congruent number.

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, 105468 + ... + 225631.

It is an arithmetic number, because the mean of its divisors is an integer number (2035271700).

Almost surely, 2^19893090118 is an apocalyptic number.

19893090118 is a deficient number, since it is larger than the sum of its proper divisors (12671257082).

19893090118 is a wasteful number, since it uses less digits than its factorization.

19893090118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333843.

The product of its (nonzero) digits is 139968, while the sum is 49.

The spelling of 19893090118 in words is "nineteen billion, eight hundred ninety-three million, ninety thousand, one hundred eighteen".