439409832081 has 16 divisors (see below), whose sum is σ = 639214454208. Its totient is φ = 266278622400.

The previous prime is 439409832047. The next prime is 439409832109. The reversal of 439409832081 is 180238904934.

It is not a de Polignac number, because 439409832081 - 2⁹ = 439409831569 is a prime.

It is a super-2 number, since 2×439409832081² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (439409832181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463666 + ... + 1045851.

It is an arithmetic number, because the mean of its divisors is an integer number (39950903388).

Almost surely, 2^439409832081 is an apocalyptic number.

It is an amenable number.

439409832081 is a deficient number, since it is larger than the sum of its proper divisors (199804622127).

439409832081 is a wasteful number, since it uses less digits than its factorization.

439409832081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518352.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 439409832081 in words is "four hundred thirty-nine billion, four hundred nine million, eight hundred thirty-two thousand, eighty-one".