439089252688 has 20 divisors (see below), whose sum is σ = 871485072948. Its totient is φ = 214189879040.

The previous prime is 439089252577. The next prime is 439089252713. The reversal of 439089252688 is 886252980934.

It can be written as a sum of positive squares in 2 ways, for example, as 36133447744 + 402955804944 = 190088^2 + 634788^2 .

It is a super-2 number, since 2×439089252688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334671031 + ... + 334672342.

Almost surely, 2^439089252688 is an apocalyptic number.

It is an amenable number.

439089252688 is a deficient number, since it is larger than the sum of its proper divisors (432395820260).

439089252688 is a wasteful number, since it uses less digits than its factorization.

439089252688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669343422 (or 669343416 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 64.

The spelling of 439089252688 in words is "four hundred thirty-nine billion, eighty-nine million, two hundred fifty-two thousand, six hundred eighty-eight".