439448091686117 has 2 divisors, whose sum is σ = 439448091686118. Its totient is φ = 439448091686116.

The previous prime is 439448091686059. The next prime is 439448091686129. The reversal of 439448091686117 is 711686190844934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438824108600641 + 623983085476 = 20948129^2 + 789926^2 .

It is a cyclic number.

It is not a de Polignac number, because 439448091686117 - 2⁸ = 439448091685861 is a prime.

It is a super-3 number, since 3×439448091686117³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (439448691686117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219724045843058 + 219724045843059.

It is an arithmetic number, because the mean of its divisors is an integer number (219724045843059).

Almost surely, 2^{439448091686117} is an apocalyptic number.

It is an amenable number.

439448091686117 is a deficient number, since it is larger than the sum of its proper divisors (1).

439448091686117 is an equidigital number, since it uses as much as digits as its factorization.

439448091686117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250822656, while the sum is 71.

The spelling of 439448091686117 in words is "four hundred thirty-nine trillion, four hundred forty-eight billion, ninety-one million, six hundred eighty-six thousand, one hundred seventeen".