19147444300 has 72 divisors (see below), whose sum is σ = 43501122000. Its totient is φ = 7305688320.

The previous prime is 19147444297. The next prime is 19147444319. The reversal of 19147444300 is 344474191.

It is a self number, because there is not a number n which added to its sum of digits gives 19147444300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200926 + ... + 280474.

It is an arithmetic number, because the mean of its divisors is an integer number (604182250).

Almost surely, 2^19147444300 is an apocalyptic number.

19147444300 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 19147444300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21750561000).

19147444300 is an abundant number, since it is smaller than the sum of its proper divisors (24353677700).

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

19147444300 is a wasteful number, since it uses less digits than its factorization.

19147444300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79675 (or 79668 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 19147444300 in words is "nineteen billion, one hundred forty-seven million, four hundred forty-four thousand, three hundred".