19144220769168 has 40 divisors (see below), whose sum is σ = 53951894896416. Its totient is φ = 5801279020800.

The previous prime is 19144220769133. The next prime is 19144220769221. The reversal of 19144220769168 is 86196702244191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18128996413 + ... + 18128997468.

Almost surely, 2^{19144220769168} is an apocalyptic number.

It is an amenable number.

19144220769168 is an abundant number, since it is smaller than the sum of its proper divisors (34807674127248).

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

19144220769168 is a wasteful number, since it uses less digits than its factorization.

19144220769168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36257993903 (or 36257993897 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 19144220769168 in words is "nineteen trillion, one hundred forty-four billion, two hundred twenty million, seven hundred sixty-nine thousand, one hundred sixty-eight".