144439364017 has 6 divisors (see below), whose sum is σ = 156404755302. Its totient is φ = 133328643552.

The previous prime is 144439363931. The next prime is 144439364021. The reversal of 144439364017 is 710463934441.

It can be written as a sum of positive squares in 3 ways, for example, as 1724657841 + 142714706176 = 41529^2 + 377776^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144439364017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144439364057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427335228 + ... + 427335565.

It is an arithmetic number, because the mean of its divisors is an integer number (26067459217).

Almost surely, 2^144439364017 is an apocalyptic number.

It is an amenable number.

144439364017 is a deficient number, since it is larger than the sum of its proper divisors (11965391285).

144439364017 is an equidigital number, since it uses as much as digits as its factorization.

144439364017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854670819 (or 854670806 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 144439364017 in words is "one hundred forty-four billion, four hundred thirty-nine million, three hundred sixty-four thousand, seventeen".