19128096091 has 8 divisors (see below), whose sum is σ = 21811222944. Its totient is φ = 16618074240.

The previous prime is 19128096079. The next prime is 19128096137. The reversal of 19128096091 is 19069082191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19128096091 - 2¹¹ = 19128094043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19128091091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43276015 + ... + 43276456.

It is an arithmetic number, because the mean of its divisors is an integer number (2726402868).

Almost surely, 2^19128096091 is an apocalyptic number.

19128096091 is a deficient number, since it is larger than the sum of its proper divisors (2683126853).

19128096091 is a wasteful number, since it uses less digits than its factorization.

19128096091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86552501.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 19128096091 in words is "nineteen billion, one hundred twenty-eight million, ninety-six thousand, ninety-one".