19314430720 has 144 divisors (see below), whose sum is σ = 50135575392. Its totient is φ = 7086735360.

The previous prime is 19314430703. The next prime is 19314430727. The reversal of 19314430720 is 2703441391.

It is not an unprimeable number, because it can be changed into a prime (19314430727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2708760 + ... + 2715880.

It is an arithmetic number, because the mean of its divisors is an integer number (348163718).

Almost surely, 2^19314430720 is an apocalyptic number.

19314430720 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 19314430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25067787696).

19314430720 is an abundant number, since it is smaller than the sum of its proper divisors (30821144672).

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

19314430720 is a wasteful number, since it uses less digits than its factorization.

19314430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7318 (or 7304 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 19314430720 in words is "nineteen billion, three hundred fourteen million, four hundred thirty thousand, seven hundred twenty".