8275128019 has 2 divisors, whose sum is σ = 8275128020. Its totient is φ = 8275128018.

The previous prime is 8275127999. The next prime is 8275128049. The reversal of 8275128019 is 9108215728.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8275128019 - 2³¹ = 6127644371 is a prime.

It is a super-2 number, since 2×8275128019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8275128049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4137564009 + 4137564010.

It is an arithmetic number, because the mean of its divisors is an integer number (4137564010).

Almost surely, 2^8275128019 is an apocalyptic number.

8275128019 is a deficient number, since it is larger than the sum of its proper divisors (1).

8275128019 is an equidigital number, since it uses as much as digits as its factorization.

8275128019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 8275128019 is about 90967.7306466419. The cubic root of 8275128019 is about 2022.6694129529.

The spelling of 8275128019 in words is "eight billion, two hundred seventy-five million, one hundred twenty-eight thousand, nineteen".