4885843621 has 2 divisors, whose sum is σ = 4885843622. Its totient is φ = 4885843620.

The previous prime is 4885843619. The next prime is 4885843649. The reversal of 4885843621 is 1263485884.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3371544225 + 1514299396 = 58065^2 + 38914^2 .

It is a cyclic number.

It is not a de Polignac number, because 4885843621 - 2¹ = 4885843619 is a prime.

Together with 4885843619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4885843321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2442921810 + 2442921811.

It is an arithmetic number, because the mean of its divisors is an integer number (2442921811).

Almost surely, 2^4885843621 is an apocalyptic number.

It is an amenable number.

4885843621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4885843621 is an equidigital number, since it uses as much as digits as its factorization.

4885843621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1474560, while the sum is 49.

The square root of 4885843621 is about 69898.8098682660. The cubic root of 4885843621 is about 1696.8619874943.

The spelling of 4885843621 in words is "four billion, eight hundred eighty-five million, eight hundred forty-three thousand, six hundred twenty-one".