320485281379 has 2 divisors, whose sum is σ = 320485281380. Its totient is φ = 320485281378.

The previous prime is 320485281377. The next prime is 320485281407. The reversal of 320485281379 is 973182584023.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320485281379 - 2¹ = 320485281377 is a prime.

Together with 320485281377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320485281377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160242640689 + 160242640690.

It is an arithmetic number, because the mean of its divisors is an integer number (160242640690).

Almost surely, 2^320485281379 is an apocalyptic number.

320485281379 is a deficient number, since it is larger than the sum of its proper divisors (1).

320485281379 is an equidigital number, since it uses as much as digits as its factorization.

320485281379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 320485281379 in words is "three hundred twenty billion, four hundred eighty-five million, two hundred eighty-one thousand, three hundred seventy-nine".