402144443443 has 2 divisors, whose sum is σ = 402144443444. Its totient is φ = 402144443442.

The previous prime is 402144443413. The next prime is 402144443509. The reversal of 402144443443 is 344344441204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402144443443 is a prime.

It is not a weakly prime, because it can be changed into another prime (402144443413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201072221721 + 201072221722.

It is an arithmetic number, because the mean of its divisors is an integer number (201072221722).

Almost surely, 2^402144443443 is an apocalyptic number.

402144443443 is a deficient number, since it is larger than the sum of its proper divisors (1).

402144443443 is an equidigital number, since it uses as much as digits as its factorization.

402144443443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 402144443443 its reverse (344344441204), we get a palindrome (746488884647).

The spelling of 402144443443 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-three thousand, four hundred forty-three".