4845020321 has 2 divisors, whose sum is σ = 4845020322. Its totient is φ = 4845020320.

The previous prime is 4845020317. The next prime is 4845020329. The reversal of 4845020321 is 1230205484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3119781025 + 1725239296 = 55855^2 + 41536^2 .

It is a cyclic number.

It is not a de Polignac number, because 4845020321 - 2² = 4845020317 is a prime.

It is not a weakly prime, because it can be changed into another prime (4845020329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2422510160 + 2422510161.

It is an arithmetic number, because the mean of its divisors is an integer number (2422510161).

Almost surely, 2^4845020321 is an apocalyptic number.

It is an amenable number.

4845020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4845020321 is an equidigital number, since it uses as much as digits as its factorization.

4845020321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 4845020321 is about 69606.1801925662. The cubic root of 4845020321 is about 1692.1227624388.

The spelling of 4845020321 in words is "four billion, eight hundred forty-five million, twenty thousand, three hundred twenty-one".