439718969039 has 6 divisors (see below), whose sum is σ = 511509821184. Its totient is φ = 376901973420.

The previous prime is 439718969017. The next prime is 439718969047. The reversal of 439718969039 is 930969817934.

It is not a de Polignac number, because 439718969039 - 2²⁰ = 439717920463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 439718969039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439718969009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4486928207 + ... + 4486928304.

It is an arithmetic number, because the mean of its divisors is an integer number (85251636864).

Almost surely, 2^439718969039 is an apocalyptic number.

439718969039 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

439718969039 is a deficient number, since it is larger than the sum of its proper divisors (71790852145).

439718969039 is an equidigital number, since it uses as much as digits as its factorization.

439718969039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973856525 (or 8973856518 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 68.

The spelling of 439718969039 in words is "four hundred thirty-nine billion, seven hundred eighteen million, nine hundred sixty-nine thousand, thirty-nine".