402144441071 has 2 divisors, whose sum is σ = 402144441072. Its totient is φ = 402144441070.

The previous prime is 402144441059. The next prime is 402144441089. The reversal of 402144441071 is 170144441204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402144441071 - 2¹⁴ = 402144424687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402144441011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201072220535 + 201072220536.

It is an arithmetic number, because the mean of its divisors is an integer number (201072220536).

Almost surely, 2^402144441071 is an apocalyptic number.

402144441071 is a deficient number, since it is larger than the sum of its proper divisors (1).

402144441071 is an equidigital number, since it uses as much as digits as its factorization.

402144441071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 32.

Adding to 402144441071 its reverse (170144441204), we get a palindrome (572288882275).

The spelling of 402144441071 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-one thousand, seventy-one".