439952161489 has 4 divisors (see below), whose sum is σ = 449312845824. Its totient is φ = 430591477156.

The previous prime is 439952161459. The next prime is 439952161529. The reversal of 439952161489 is 984161259934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 439952161489 - 2²³ = 439943772881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439952161459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4680342097 + ... + 4680342190.

It is an arithmetic number, because the mean of its divisors is an integer number (112328211456).

Almost surely, 2^439952161489 is an apocalyptic number.

It is an amenable number.

439952161489 is a deficient number, since it is larger than the sum of its proper divisors (9360684335).

439952161489 is an equidigital number, since it uses as much as digits as its factorization.

439952161489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9360684334.

The product of its digits is 16796160, while the sum is 61.

The spelling of 439952161489 in words is "four hundred thirty-nine billion, nine hundred fifty-two million, one hundred sixty-one thousand, four hundred eighty-nine".