19054342015199 has 4 divisors (see below), whose sum is σ = 19569324231864. Its totient is φ = 18539359798536.

The previous prime is 19054342015153. The next prime is 19054342015207. The reversal of 19054342015199 is 99151024345091.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19054342015199 - 2⁴⁴ = 1462155970783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19054342015199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19054342015699) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 257491108277 + ... + 257491108350.

It is an arithmetic number, because the mean of its divisors is an integer number (4892331057966).

Almost surely, 2^{19054342015199} is an apocalyptic number.

19054342015199 is a deficient number, since it is larger than the sum of its proper divisors (514982216665).

19054342015199 is an equidigital number, since it uses as much as digits as its factorization.

19054342015199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514982216664.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The spelling of 19054342015199 in words is "nineteen trillion, fifty-four billion, three hundred forty-two million, fifteen thousand, one hundred ninety-nine".