320848592588989 has 2 divisors, whose sum is σ = 320848592588990. Its totient is φ = 320848592588988.

The previous prime is 320848592588971. The next prime is 320848592589047. The reversal of 320848592588989 is 989885295848023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180081235719225 + 140767356869764 = 13419435^2 + 11864542^2 .

It is a cyclic number.

It is not a de Polignac number, because 320848592588989 - 2¹⁷ = 320848592457917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320848892588989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160424296294494 + 160424296294495.

It is an arithmetic number, because the mean of its divisors is an integer number (160424296294495).

Almost surely, 2^{320848592588989} is an apocalyptic number.

It is an amenable number.

320848592588989 is a deficient number, since it is larger than the sum of its proper divisors (1).

320848592588989 is an equidigital number, since it uses as much as digits as its factorization.

320848592588989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28665446400, while the sum is 88.

The spelling of 320848592588989 in words is "three hundred twenty trillion, eight hundred forty-eight billion, five hundred ninety-two million, five hundred eighty-eight thousand, nine hundred eighty-nine".