440144377867 has 2 divisors, whose sum is σ = 440144377868. Its totient is φ = 440144377866.

The previous prime is 440144377843. The next prime is 440144377927. The reversal of 440144377867 is 768773441044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440144377867 - 2¹¹ = 440144375819 is a prime.

It is not a weakly prime, because it can be changed into another prime (440144377067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220072188933 + 220072188934.

It is an arithmetic number, because the mean of its divisors is an integer number (220072188934).

Almost surely, 2^440144377867 is an apocalyptic number.

440144377867 is a deficient number, since it is larger than the sum of its proper divisors (1).

440144377867 is an equidigital number, since it uses as much as digits as its factorization.

440144377867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12644352, while the sum is 55.

The spelling of 440144377867 in words is "four hundred forty billion, one hundred forty-four million, three hundred seventy-seven thousand, eight hundred sixty-seven".