144644777313 has 16 divisors (see below), whose sum is σ = 195057668160. Its totient is φ = 95331213824.

The previous prime is 144644777243. The next prime is 144644777327. The reversal of 144644777313 is 313777446441.

It is a cyclic number.

It is not a de Polignac number, because 144644777313 - 2²⁰ = 144643728737 is a prime.

It is a super-3 number, since 3×144644777313³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (144644777393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784770 + ... + 1864052.

It is an arithmetic number, because the mean of its divisors is an integer number (12191104260).

Almost surely, 2^144644777313 is an apocalyptic number.

It is an amenable number.

144644777313 is a deficient number, since it is larger than the sum of its proper divisors (50412890847).

144644777313 is an equidigital number, since it uses as much as digits as its factorization.

144644777313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86208.

The product of its digits is 4741632, while the sum is 51.

The spelling of 144644777313 in words is "one hundred forty-four billion, six hundred forty-four million, seven hundred seventy-seven thousand, three hundred thirteen".