19788222888000 has 1344 divisors, whose sum is σ = 85480273202688. Its totient is φ = 4437520588800.

The previous prime is 19788222887963. The next prime is 19788222888013. The reversal of 19788222888000 is 88822288791.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 721210282 + ... + 721237718.

It is an arithmetic number, because the mean of its divisors is an integer number (63601393752).

Almost surely, 2^{19788222888000} is an apocalyptic number.

19788222888000 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 19788222888000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42740136601344).

19788222888000 is an abundant number, since it is smaller than the sum of its proper divisors (65692050314688).

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

19788222888000 is an equidigital number, since it uses as much as digits as its factorization.

19788222888000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27539 (or 27507 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 63.

The spelling of 19788222888000 in words is "nineteen trillion, seven hundred eighty-eight billion, two hundred twenty-two million, eight hundred eighty-eight thousand".