19867916112 has 80 divisors (see below), whose sum is σ = 56026289088. Its totient is φ = 6016829440.

The previous prime is 19867916083. The next prime is 19867916137. The reversal of 19867916112 is 21161976891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904168 + ... + 925880.

Almost surely, 2^19867916112 is an apocalyptic number.

19867916112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19867916112 is an abundant number, since it is smaller than the sum of its proper divisors (36158372976).

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

19867916112 is a wasteful number, since it uses less digits than its factorization.

19867916112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23468 (or 23462 counting only the distinct ones).

The product of its digits is 326592, while the sum is 51.

The spelling of 19867916112 in words is "nineteen billion, eight hundred sixty-seven million, nine hundred sixteen thousand, one hundred twelve".