439083440945 has 4 divisors (see below), whose sum is σ = 526900129140. Its totient is φ = 351266752752.

The previous prime is 439083440911. The next prime is 439083441011. The reversal of 439083440945 is 549044380934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51772631296 + 387310809649 = 227536^2 + 622343^2 .

It is a cyclic number.

It is not a de Polignac number, because 439083440945 - 2⁸ = 439083440689 is a prime.

It is a super-2 number, since 2×439083440945² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43908344090 + ... + 43908344099.

It is an arithmetic number, because the mean of its divisors is an integer number (131725032285).

Almost surely, 2^439083440945 is an apocalyptic number.

It is an amenable number.

439083440945 is a deficient number, since it is larger than the sum of its proper divisors (87816688195).

439083440945 is an equidigital number, since it uses as much as digits as its factorization.

439083440945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87816688194.

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 439083440945 in words is "four hundred thirty-nine billion, eighty-three million, four hundred forty thousand, nine hundred forty-five".