19329840000 has 800 divisors, whose sum is σ = 76148905800. Its totient is φ = 4852224000.

The previous prime is 19329839993. The next prime is 19329840043. The reversal of 19329840000 is 4892391.

It is a tau number, because it is divible by the number of its divisors (800).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 123119922 + ... + 123120078.

Almost surely, 2^19329840000 is an apocalyptic number.

19329840000 is a gapful number since it is divisible by the number (10) 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 19329840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38074452900).

19329840000 is an abundant number, since it is smaller than the sum of its proper divisors (56819065800).

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

19329840000 is an equidigital number, since it uses as much as digits as its factorization.

19329840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

It can be divided in two parts, 19329 and 840000, that added together give a square (859329 = 927²).

The spelling of 19329840000 in words is "nineteen billion, three hundred twenty-nine million, eight hundred forty thousand".