320028772845 has 16 divisors (see below), whose sum is σ = 512553539520. Its totient is φ = 170512844544.

The previous prime is 320028772829. The next prime is 320028772867. The reversal of 320028772845 is 548277820023.

It is not a de Polignac number, because 320028772845 - 2⁴ = 320028772829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320028772794 and 320028772803.

It is a congruent number.

It is an unprimeable number.

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, 10557339 + ... + 10587608.

It is an arithmetic number, because the mean of its divisors is an integer number (32034596220).

Almost surely, 2^320028772845 is an apocalyptic number.

It is an amenable number.

320028772845 is a deficient number, since it is larger than the sum of its proper divisors (192524766675).

320028772845 is a wasteful number, since it uses less digits than its factorization.

320028772845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21145964.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 320028772845 in words is "three hundred twenty billion, twenty-eight million, seven hundred seventy-two thousand, eight hundred forty-five".