144326873069809 has 4 divisors (see below), whose sum is σ = 147847040705700. Its totient is φ = 140806705433920.

The previous prime is 144326873069767. The next prime is 144326873069833. The reversal of 144326873069809 is 908960378623441.

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 23091292515600 + 121235580554209 = 4805340^2 + 11010703^2 .

It is a cyclic number.

It is not a de Polignac number, because 144326873069809 - 2²³ = 144326864681201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144326873069209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760083817884 + ... + 1760083817965.

It is an arithmetic number, because the mean of its divisors is an integer number (36961760176425).

Almost surely, 2^{144326873069809} is an apocalyptic number.

It is an amenable number.

144326873069809 is a deficient number, since it is larger than the sum of its proper divisors (3520167635891).

144326873069809 is an equidigital number, since it uses as much as digits as its factorization.

144326873069809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520167635890.

The product of its (nonzero) digits is 376233984, while the sum is 70.

The spelling of 144326873069809 in words is "one hundred forty-four trillion, three hundred twenty-six billion, eight hundred seventy-three million, sixty-nine thousand, eight hundred nine".