4805853721 has 2 divisors, whose sum is σ = 4805853722. Its totient is φ = 4805853720.

The previous prime is 4805853719. The next prime is 4805853733. The reversal of 4805853721 is 1273585084.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4137062400 + 668791321 = 64320^2 + 25861^2 .

It is a cyclic number.

It is not a de Polignac number, because 4805853721 - 2¹ = 4805853719 is a prime.

Together with 4805853719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4805853121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402926860 + 2402926861.

It is an arithmetic number, because the mean of its divisors is an integer number (2402926861).

Almost surely, 2^4805853721 is an apocalyptic number.

It is an amenable number.

4805853721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4805853721 is an equidigital number, since it uses as much as digits as its factorization.

4805853721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 4805853721 is about 69324.2650231504. The cubic root of 4805853721 is about 1687.5507769705.

The spelling of 4805853721 in words is "four billion, eight hundred five million, eight hundred fifty-three thousand, seven hundred twenty-one".