320383405469 has 2 divisors, whose sum is σ = 320383405470. Its totient is φ = 320383405468.

The previous prime is 320383405399. The next prime is 320383405487. The reversal of 320383405469 is 964504383023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305842180900 + 14541224569 = 553030^2 + 120587^2 .

It is an emirp because it is prime and its reverse (964504383023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320383405469 is a prime.

It is a super-2 number, since 2×320383405469² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320383405369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160191702734 + 160191702735.

It is an arithmetic number, because the mean of its divisors is an integer number (160191702735).

Almost surely, 2^320383405469 is an apocalyptic number.

It is an amenable number.

320383405469 is a deficient number, since it is larger than the sum of its proper divisors (1).

320383405469 is an equidigital number, since it uses as much as digits as its factorization.

320383405469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 320383405469 in words is "three hundred twenty billion, three hundred eighty-three million, four hundred five thousand, four hundred sixty-nine".