19938594112 has 56 divisors (see below), whose sum is σ = 40960548000. Its totient is φ = 9618341376.

The previous prime is 19938594089. The next prime is 19938594157. The reversal of 19938594112 is 21149583991.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19938594112.

It is a congruent number.

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, 3150183 + ... + 3156505.

Almost surely, 2^19938594112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19938594112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20480274000).

19938594112 is an abundant number, since it is smaller than the sum of its proper divisors (21021953888).

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

19938594112 is a wasteful number, since it uses less digits than its factorization.

19938594112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063 (or 8053 counting only the distinct ones).

The product of its digits is 699840, while the sum is 52.

The spelling of 19938594112 in words is "nineteen billion, nine hundred thirty-eight million, five hundred ninety-four thousand, one hundred twelve".