144039578891 has 8 divisors (see below), whose sum is σ = 155667676080. Its totient is φ = 132489785952.

The previous prime is 144039578869. The next prime is 144039578909. The reversal of 144039578891 is 198875930441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144039578891 - 2⁶ = 144039578827 is a prime.

It is a super-2 number, since 2×144039578891² (a number of 23 digits) contains 22 as substring.

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 144039578891.

It is not an unprimeable number, because it can be changed into a prime (144039578801) 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 7 ways as a sum of consecutive naturals, for example, 19572236 + ... + 19579593.

It is an arithmetic number, because the mean of its divisors is an integer number (19458459510).

Almost surely, 2^144039578891 is an apocalyptic number.

144039578891 is a deficient number, since it is larger than the sum of its proper divisors (11628097189).

144039578891 is a wasteful number, since it uses less digits than its factorization.

144039578891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39152125.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 144039578891 in words is "one hundred forty-four billion, thirty-nine million, five hundred seventy-eight thousand, eight hundred ninety-one".