144247664779 has 2 divisors, whose sum is σ = 144247664780. Its totient is φ = 144247664778.

The previous prime is 144247664773. The next prime is 144247664833. The reversal of 144247664779 is 977466742441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144247664779 - 2¹³ = 144247656587 is a prime.

It is not a weakly prime, because it can be changed into another prime (144247664773) 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 as a sum of consecutive naturals, namely, 72123832389 + 72123832390.

It is an arithmetic number, because the mean of its divisors is an integer number (72123832390).

Almost surely, 2^144247664779 is an apocalyptic number.

144247664779 is a deficient number, since it is larger than the sum of its proper divisors (1).

144247664779 is an equidigital number, since it uses as much as digits as its factorization.

144247664779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 61.

The spelling of 144247664779 in words is "one hundred forty-four billion, two hundred forty-seven million, six hundred sixty-four thousand, seven hundred seventy-nine".