4246268821 has 2 divisors, whose sum is σ = 4246268822. Its totient is φ = 4246268820.

The previous prime is 4246268801. The next prime is 4246268839. The reversal of 4246268821 is 1288626424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3635487025 + 610781796 = 60295^2 + 24714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4246268821 - 2⁹ = 4246268309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4246268801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2123134410 + 2123134411.

It is an arithmetic number, because the mean of its divisors is an integer number (2123134411).

Almost surely, 2^4246268821 is an apocalyptic number.

It is an amenable number.

4246268821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4246268821 is an equidigital number, since it uses as much as digits as its factorization.

4246268821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294912, while the sum is 43.

The square root of 4246268821 is about 65163.4009318114. The cubic root of 4246268821 is about 1619.3317394398.

The spelling of 4246268821 in words is "four billion, two hundred forty-six million, two hundred sixty-eight thousand, eight hundred twenty-one".