19242256905588 has 144 divisors (see below), whose sum is σ = 47584843063296. Its totient is φ = 6051034290240.

The previous prime is 19242256905583. The next prime is 19242256905589. The reversal of 19242256905588 is 88550965224291.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19242256905583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3924585945 + ... + 3924590847.

Almost surely, 2^{19242256905588} 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 19242256905588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23792421531648).

19242256905588 is an abundant number, since it is smaller than the sum of its proper divisors (28342586157708).

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

19242256905588 is a wasteful number, since it uses less digits than its factorization.

19242256905588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562 (or 8541 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 66.

The spelling of 19242256905588 in words is "nineteen trillion, two hundred forty-two billion, two hundred fifty-six million, nine hundred five thousand, five hundred eighty-eight".