4318766021 has 2 divisors, whose sum is σ = 4318766022. Its totient is φ = 4318766020.

The previous prime is 4318765991. The next prime is 4318766041. The reversal of 4318766021 is 1206678134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3284436100 + 1034329921 = 57310^2 + 32161^2 .

It is a cyclic number.

It is not a de Polignac number, because 4318766021 - 2¹⁰ = 4318764997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4318766041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159383010 + 2159383011.

It is an arithmetic number, because the mean of its divisors is an integer number (2159383011).

Almost surely, 2^4318766021 is an apocalyptic number.

It is an amenable number.

4318766021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4318766021 is an equidigital number, since it uses as much as digits as its factorization.

4318766021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 4318766021 is about 65717.3190338742. The cubic root of 4318766021 is about 1628.4954841555.

The spelling of 4318766021 in words is "four billion, three hundred eighteen million, seven hundred sixty-six thousand, twenty-one".