320526871338 has 32 divisors (see below), whose sum is σ = 645288779520. Its totient is φ = 106138621440.

The previous prime is 320526871271. The next prime is 320526871339. The reversal of 320526871338 is 833178625023.

It is not an unprimeable number, because it can be changed into a prime (320526871339) 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 in 15 ways as a sum of consecutive naturals, for example, 320431 + ... + 862397.

It is an arithmetic number, because the mean of its divisors is an integer number (20165274360).

Almost surely, 2^320526871338 is an apocalyptic number.

320526871338 is an abundant number, since it is smaller than the sum of its proper divisors (324761908182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320526871338 is a wasteful number, since it uses less digits than its factorization.

320526871338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542622.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 320526871338 in words is "three hundred twenty billion, five hundred twenty-six million, eight hundred seventy-one thousand, three hundred thirty-eight".