320439572807 has 2 divisors, whose sum is σ = 320439572808. Its totient is φ = 320439572806.

The previous prime is 320439572657. The next prime is 320439572821. The reversal of 320439572807 is 708275934023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320439572807 - 2³⁰ = 319365830983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320439572507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160219786403 + 160219786404.

It is an arithmetic number, because the mean of its divisors is an integer number (160219786404).

Almost surely, 2^320439572807 is an apocalyptic number.

320439572807 is a deficient number, since it is larger than the sum of its proper divisors (1).

320439572807 is an equidigital number, since it uses as much as digits as its factorization.

320439572807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 320439572807 in words is "three hundred twenty billion, four hundred thirty-nine million, five hundred seventy-two thousand, eight hundred seven".