19323253312 has 224 divisors, whose sum is σ = 45061632000. Its totient is φ = 8138188800.

The previous prime is 19323253267. The next prime is 19323253319. The reversal of 19323253312 is 21335232391.

It is not an unprimeable number, because it can be changed into a prime (19323253319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55367314 + ... + 55367662.

It is an arithmetic number, because the mean of its divisors is an integer number (201168000).

Almost surely, 2^19323253312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19323253312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22530816000).

19323253312 is an abundant number, since it is smaller than the sum of its proper divisors (25738378688).

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

19323253312 is a wasteful number, since it uses less digits than its factorization.

19323253312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 495 counting only the distinct ones).

The product of its digits is 29160, while the sum is 34.

The spelling of 19323253312 in words is "nineteen billion, three hundred twenty-three million, two hundred fifty-three thousand, three hundred twelve".