439520868351009 has 45 divisors (see below), whose sum is σ = 686362581377473. Its totient is φ = 280271409572088.

The previous prime is 439520868351007. The next prime is 439520868351017. The reversal of 439520868351009 is 900153868025934.

The square root of 439520868351009 is 20964753.

It is a perfect power (a square), and thus also a powerful number.

439520868351009 is a `hidden beast` number, since 4 + 3 + 9 + 52 + 0 + 8 + 68 + 3 + 510 + 0 + 9 = 666.

It is not a de Polignac number, because 439520868351009 - 2¹ = 439520868351007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439520868351007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4339653232 + ... + 4339754510.

Almost surely, 2^{439520868351009} is an apocalyptic number.

439520868351009 is the 20964753-rd square number.

439520868351009 is the 10482377-th centered octagonal number.

It is an amenable number.

439520868351009 is a deficient number, since it is larger than the sum of its proper divisors (246841713026464).

439520868351009 is an frugal number, since it uses more digits than its factorization.

439520868351009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202616 (or 101305 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 439520868351009 in words is "four hundred thirty-nine trillion, five hundred twenty billion, eight hundred sixty-eight million, three hundred fifty-one thousand, nine".