19227446448 has 160 divisors (see below), whose sum is σ = 58685386752. Its totient is φ = 5308416000.

The previous prime is 19227446443. The next prime is 19227446453. The reversal of 19227446448 is 84464472291.

It is an interprime number because it is at equal distance from previous prime (19227446443) and next prime (19227446453).

It is a self number, because there is not a number n which added to its sum of digits gives 19227446448.

It is not an unprimeable number, because it can be changed into a prime (19227446443) 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, 12008848 + ... + 12010448.

Almost surely, 2^19227446448 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 19227446448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29342693376).

19227446448 is an abundant number, since it is smaller than the sum of its proper divisors (39457940304).

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

19227446448 is a wasteful number, since it uses less digits than its factorization.

19227446448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803 (or 2797 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The spelling of 19227446448 in words is "nineteen billion, two hundred twenty-seven million, four hundred forty-six thousand, four hundred forty-eight".