439216216541 has 8 divisors (see below), whose sum is σ = 445123155960. Its totient is φ = 433330875648.

The previous prime is 439216216529. The next prime is 439216216547. The reversal of 439216216541 is 145612612934.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10677088900 + 428539127641 = 103330^2 + 654629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439216216541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 439216216492 and 439216216501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439216216547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5358686 + ... + 5440031.

It is an arithmetic number, because the mean of its divisors is an integer number (55640394495).

Almost surely, 2^439216216541 is an apocalyptic number.

It is an amenable number.

439216216541 is a deficient number, since it is larger than the sum of its proper divisors (5906939419).

439216216541 is a wasteful number, since it uses less digits than its factorization.

439216216541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799263.

The product of its digits is 311040, while the sum is 44.

The spelling of 439216216541 in words is "four hundred thirty-nine billion, two hundred sixteen million, two hundred sixteen thousand, five hundred forty-one".