6403144323 has 16 divisors (see below), whose sum is σ = 8562153600. Its totient is φ = 4256468160.

The previous prime is 6403144277. The next prime is 6403144339. The reversal of 6403144323 is 3234413046.

It is not a de Polignac number, because 6403144323 - 2¹⁸ = 6402882179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6403143323) 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 in 15 ways as a sum of consecutive naturals, for example, 2155183 + ... + 2158151.

It is an arithmetic number, because the mean of its divisors is an integer number (535134600).

Almost surely, 2^6403144323 is an apocalyptic number.

6403144323 is a deficient number, since it is larger than the sum of its proper divisors (2159009277).

6403144323 is a wasteful number, since it uses less digits than its factorization.

6403144323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 6403144323 is about 80019.6496055813. The cubic root of 6403144323 is about 1856.9395389672.

Adding to 6403144323 its reverse (3234413046), we get a palindrome (9637557369).

The spelling of 6403144323 in words is "six billion, four hundred three million, one hundred forty-four thousand, three hundred twenty-three".