19331936920 has 64 divisors (see below), whose sum is σ = 46338311520. Its totient is φ = 7233214464.

The previous prime is 19331936909. The next prime is 19331936927. The reversal of 19331936920 is 2963913391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19331936927) by changing a digit.

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, 23634 + ... + 198046.

Almost surely, 2^19331936920 is an apocalyptic number.

19331936920 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 19331936920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23169155760).

19331936920 is an abundant number, since it is smaller than the sum of its proper divisors (27006374600).

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

19331936920 is a wasteful number, since it uses less digits than its factorization.

19331936920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174604 (or 174600 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 19331936920 in words is "nineteen billion, three hundred thirty-one million, nine hundred thirty-six thousand, nine hundred twenty".