3989139170443 has 4 divisors (see below), whose sum is σ = 4559016194800. Its totient is φ = 3419262146088.

The previous prime is 3989139170437. The next prime is 3989139170459. The reversal of 3989139170443 is 3440719319893.

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 3989139170443 - 2⁵ = 3989139170411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989139170473) 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 3 ways as a sum of consecutive naturals, for example, 284938512168 + ... + 284938512181.

It is an arithmetic number, because the mean of its divisors is an integer number (1139754048700).

Almost surely, 2^{3989139170443} is an apocalyptic number.

3989139170443 is a deficient number, since it is larger than the sum of its proper divisors (569877024357).

3989139170443 is an equidigital number, since it uses as much as digits as its factorization.

3989139170443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569877024356.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 3989139170443 in words is "three trillion, nine hundred eighty-nine billion, one hundred thirty-nine million, one hundred seventy thousand, four hundred forty-three".