19930111384 has 16 divisors (see below), whose sum is σ = 37381717800. Its totient is φ = 9961653312.

The previous prime is 19930111373. The next prime is 19930111391. The reversal of 19930111384 is 48311103991.

It is a congruent number.

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, 400317 + ... + 447340.

Almost surely, 2^19930111384 is an apocalyptic number.

It is an amenable number.

19930111384 is a deficient number, since it is larger than the sum of its proper divisors (17451606416).

19930111384 is a wasteful number, since it uses less digits than its factorization.

19930111384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850602 (or 850598 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 19930111384 in words is "nineteen billion, nine hundred thirty million, one hundred eleven thousand, three hundred eighty-four".