320318748289 has 16 divisors (see below), whose sum is σ = 325271564800. Its totient is φ = 315401402880.

The previous prime is 320318748247. The next prime is 320318748301. The reversal of 320318748289 is 982847813023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 320318748289 - 2¹⁹ = 320318224001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320318748089) 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, 46092187 + ... + 46099135.

It is an arithmetic number, because the mean of its divisors is an integer number (20329472800).

Almost surely, 2^320318748289 is an apocalyptic number.

It is an amenable number.

320318748289 is a deficient number, since it is larger than the sum of its proper divisors (4952816511).

320318748289 is a wasteful number, since it uses less digits than its factorization.

320318748289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 320318748289 in words is "three hundred twenty billion, three hundred eighteen million, seven hundred forty-eight thousand, two hundred eighty-nine".