4873662821 has 2 divisors, whose sum is σ = 4873662822. Its totient is φ = 4873662820.

The previous prime is 4873662793. The next prime is 4873662839. The reversal of 4873662821 is 1282663784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4393833796 + 479829025 = 66286^2 + 21905^2 .

It is a cyclic number.

It is not a de Polignac number, because 4873662821 - 2⁶ = 4873662757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4873662851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2436831410 + 2436831411.

It is an arithmetic number, because the mean of its divisors is an integer number (2436831411).

Almost surely, 2^4873662821 is an apocalyptic number.

It is an amenable number.

4873662821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4873662821 is an equidigital number, since it uses as much as digits as its factorization.

4873662821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 47.

The square root of 4873662821 is about 69811.6238244033. The cubic root of 4873662821 is about 1695.4506763311.

The spelling of 4873662821 in words is "four billion, eight hundred seventy-three million, six hundred sixty-two thousand, eight hundred twenty-one".