19194320231424 has 704 divisors, whose sum is σ = 64902006449280. Its totient is φ = 5551329116160.

The previous prime is 19194320231351. The next prime is 19194320231483. The reversal of 19194320231424 is 42413202349191.

19194320231424 is a `hidden beast` number, since 1 + 9 + 1 + 9 + 4 + 320 + 2 + 314 + 2 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19194320231424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6311843344 + ... + 6311846384.

It is an arithmetic number, because the mean of its divisors is an integer number (92190350070).

Almost surely, 2^{19194320231424} 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 19194320231424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32451003224640).

19194320231424 is an abundant number, since it is smaller than the sum of its proper divisors (45707686217856).

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

19194320231424 is a wasteful number, since it uses less digits than its factorization.

19194320231424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4109 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 19194320231424 in words is "nineteen trillion, one hundred ninety-four billion, three hundred twenty million, two hundred thirty-one thousand, four hundred twenty-four".