144343749889 has 4 divisors (see below), whose sum is σ = 152834558724. Its totient is φ = 135852941056.

The previous prime is 144343749857. The next prime is 144343749937. The reversal of 144343749889 is 988947343441.

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 121655859264 + 22687890625 = 348792^2 + 150625^2 .

It is a cyclic number.

It is not a de Polignac number, because 144343749889 - 2⁵ = 144343749857 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 144343749889.

It is not an unprimeable number, because it can be changed into a prime (144343749829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245404392 + ... + 4245404425.

It is an arithmetic number, because the mean of its divisors is an integer number (38208639681).

Almost surely, 2^144343749889 is an apocalyptic number.

It is an amenable number.

144343749889 is a deficient number, since it is larger than the sum of its proper divisors (8490808835).

144343749889 is an equidigital number, since it uses as much as digits as its factorization.

144343749889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490808834.

The product of its digits is 83607552, while the sum is 64.

The spelling of 144343749889 in words is "one hundred forty-four billion, three hundred forty-three million, seven hundred forty-nine thousand, eight hundred eighty-nine".