19838871312 has 40 divisors (see below), whose sum is σ = 55192759104. Its totient is φ = 6104267904.

The previous prime is 19838871301. The next prime is 19838871323. The reversal of 19838871312 is 21317883891.

It is an interprime number because it is at equal distance from previous prime (19838871301) and next prime (19838871323).

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, 15895908 + ... + 15897155.

Almost surely, 2^19838871312 is an apocalyptic number.

19838871312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19838871312 is an abundant number, since it is smaller than the sum of its proper divisors (35353887792).

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

19838871312 is a wasteful number, since it uses less digits than its factorization.

19838871312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793087 (or 31793081 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The spelling of 19838871312 in words is "nineteen billion, eight hundred thirty-eight million, eight hundred seventy-one thousand, three hundred twelve".