19828809792 has 336 divisors, whose sum is σ = 69112180800. Its totient is φ = 5357076480.

The previous prime is 19828809761. The next prime is 19828809821. The reversal of 19828809792 is 29790882891.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2041684 + ... + 2051372.

Almost surely, 2^19828809792 is an apocalyptic number.

19828809792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19828809792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34556090400).

19828809792 is an abundant number, since it is smaller than the sum of its proper divisors (49283371008).

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

19828809792 is a wasteful number, since it uses less digits than its factorization.

19828809792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754 (or 9741 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 19828809792 in words is "nineteen billion, eight hundred twenty-eight million, eight hundred nine thousand, seven hundred ninety-two".