8128346443 has 16 divisors (see below), whose sum is σ = 9553674240. Its totient is φ = 6769568736.

The previous prime is 8128346437. The next prime is 8128346449. The reversal of 8128346443 is 3446438218.

It is an interprime number because it is at equal distance from previous prime (8128346437) and next prime (8128346449).

It is not a de Polignac number, because 8128346443 - 2²⁹ = 7591475531 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 8128346443.

It is not an unprimeable number, because it can be changed into a prime (8128346449) 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 15 ways as a sum of consecutive naturals, for example, 171318 + ... + 213556.

It is an arithmetic number, because the mean of its divisors is an integer number (597104640).

Almost surely, 2^8128346443 is an apocalyptic number.

8128346443 is a deficient number, since it is larger than the sum of its proper divisors (1425327797).

8128346443 is a wasteful number, since it uses less digits than its factorization.

8128346443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43026.

The product of its digits is 442368, while the sum is 43.

The square root of 8128346443 is about 90157.3427015238. The cubic root of 8128346443 is about 2010.6388440686.

The spelling of 8128346443 in words is "eight billion, one hundred twenty-eight million, three hundred forty-six thousand, four hundred forty-three".