19042549344 has 432 divisors, whose sum is σ = 70804292832. Its totient is φ = 4802789376.

The previous prime is 19042549289. The next prime is 19042549423. The reversal of 19042549344 is 44394524091.

19042549344 is a `hidden beast` number, since 190 + 425 + 4 + 9 + 34 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19042549344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4217232 + ... + 4221744.

It is an arithmetic number, because the mean of its divisors is an integer number (163898826).

Almost surely, 2^19042549344 is an apocalyptic number.

19042549344 is a gapful number since it is divisible by the number (14) 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 19042549344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35402146416).

19042549344 is an abundant number, since it is smaller than the sum of its proper divisors (51761743488).

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

19042549344 is a wasteful number, since it uses less digits than its factorization.

19042549344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4561 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 19042549344 in words is "nineteen billion, forty-two million, five hundred forty-nine thousand, three hundred forty-four".