144441561757 has 4 divisors (see below), whose sum is σ = 144443663200. Its totient is φ = 144439460316.

The previous prime is 144441561751. The next prime is 144441561779. The reversal of 144441561757 is 757165144441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144441561757 - 2³ = 144441561749 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 144441561757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144441561751) 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, 944007 + ... + 1086292.

It is an arithmetic number, because the mean of its divisors is an integer number (36110915800).

Almost surely, 2^144441561757 is an apocalyptic number.

It is an amenable number.

144441561757 is a deficient number, since it is larger than the sum of its proper divisors (2101443).

144441561757 is an equidigital number, since it uses as much as digits as its factorization.

144441561757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101442.

The product of its digits is 1881600, while the sum is 49.

The spelling of 144441561757 in words is "one hundred forty-four billion, four hundred forty-one million, five hundred sixty-one thousand, seven hundred fifty-seven".