144944612817 has 8 divisors (see below), whose sum is σ = 193261964160. Its totient is φ = 96628501680.

The previous prime is 144944612809. The next prime is 144944612843. The reversal of 144944612817 is 718216449441.

It is a happy number.

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

It is not a de Polignac number, because 144944612817 - 2³ = 144944612809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144944612817.

It is not an unprimeable number, because it can be changed into a prime (144944612867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9784 + ... + 538502.

It is an arithmetic number, because the mean of its divisors is an integer number (24157745520).

Almost surely, 2^144944612817 is an apocalyptic number.

It is an amenable number.

144944612817 is a deficient number, since it is larger than the sum of its proper divisors (48317351343).

144944612817 is an equidigital number, since it uses as much as digits as its factorization.

144944612817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620103.

The product of its digits is 1548288, while the sum is 51.

The spelling of 144944612817 in words is "one hundred forty-four billion, nine hundred forty-four million, six hundred twelve thousand, eight hundred seventeen".