19125448320 has 256 divisors, whose sum is σ = 66889152000. Its totient is φ = 4609658880.

The previous prime is 19125448289. The next prime is 19125448327. The reversal of 19125448320 is 2384452191.

It is not an unprimeable number, because it can be changed into a prime (19125448327) 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, 3777951 + ... + 3783009.

It is an arithmetic number, because the mean of its divisors is an integer number (261285750).

Almost surely, 2^19125448320 is an apocalyptic number.

19125448320 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 19125448320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33444576000).

19125448320 is an abundant number, since it is smaller than the sum of its proper divisors (47763703680).

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

19125448320 is a wasteful number, since it uses less digits than its factorization.

19125448320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5259 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 19125448320 in words is "nineteen billion, one hundred twenty-five million, four hundred forty-eight thousand, three hundred twenty".