19943418984 has 32 divisors (see below), whose sum is σ = 49864308000. Its totient is φ = 6647038272.

The previous prime is 19943418967. The next prime is 19943419043. The reversal of 19943418984 is 48981434991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187662 + ... + 274050.

It is an arithmetic number, because the mean of its divisors is an integer number (1558259625).

Almost surely, 2^19943418984 is an apocalyptic number.

It is an amenable number.

19943418984 is an abundant number, since it is smaller than the sum of its proper divisors (29920889016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19943418984 is a wasteful number, since it uses less digits than its factorization.

19943418984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96017 (or 96013 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 60.

The spelling of 19943418984 in words is "nineteen billion, nine hundred forty-three million, four hundred eighteen thousand, nine hundred eighty-four".