845046328309 has 2 divisors, whose sum is σ = 845046328310. Its totient is φ = 845046328308.

The previous prime is 845046328289. The next prime is 845046328339. The reversal of 845046328309 is 903823640548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508468824900 + 336577503409 = 713070^2 + 580153^2 .

It is a cyclic number.

It is not a de Polignac number, because 845046328309 - 2¹³ = 845046320117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845046328339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422523164154 + 422523164155.

It is an arithmetic number, because the mean of its divisors is an integer number (422523164155).

Almost surely, 2^845046328309 is an apocalyptic number.

It is an amenable number.

845046328309 is a deficient number, since it is larger than the sum of its proper divisors (1).

845046328309 is an equidigital number, since it uses as much as digits as its factorization.

845046328309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 845046328309 in words is "eight hundred forty-five billion, forty-six million, three hundred twenty-eight thousand, three hundred nine".