19338435072 has 200 divisors, whose sum is σ = 62968907232. Its totient is φ = 5859993600.

The previous prime is 19338435047. The next prime is 19338435073. The reversal of 19338435072 is 27053483391.

It is not an unprimeable number, because it can be changed into a prime (19338435073) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 434997 + ... + 477387.

Almost surely, 2^19338435072 is an apocalyptic number.

19338435072 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 19338435072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31484453616).

19338435072 is an abundant number, since it is smaller than the sum of its proper divisors (43630472160).

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

19338435072 is an equidigital number, since it uses as much as digits as its factorization.

19338435072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42432 (or 42407 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 19338435072 in words is "nineteen billion, three hundred thirty-eight million, four hundred thirty-five thousand, seventy-two".