19128082771 has 4 divisors (see below), whose sum is σ = 21860666032. Its totient is φ = 16395499512.

The previous prime is 19128082759. The next prime is 19128082783. The reversal of 19128082771 is 17728082191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17728082191 = 29 ⋅611313179.

It is an interprime number because it is at equal distance from previous prime (19128082759) and next prime (19128082783).

It is not a de Polignac number, because 19128082771 - 2⁵ = 19128082739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19128082271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1366291620 + ... + 1366291633.

It is an arithmetic number, because the mean of its divisors is an integer number (5465166508).

Almost surely, 2^19128082771 is an apocalyptic number.

19128082771 is a deficient number, since it is larger than the sum of its proper divisors (2732583261).

19128082771 is an equidigital number, since it uses as much as digits as its factorization.

19128082771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732583260.

The product of its (nonzero) digits is 112896, while the sum is 46.

The spelling of 19128082771 in words is "nineteen billion, one hundred twenty-eight million, eighty-two thousand, seven hundred seventy-one".