4238162881 has 2 divisors, whose sum is σ = 4238162882. Its totient is φ = 4238162880.

The previous prime is 4238162843. The next prime is 4238162911. The reversal of 4238162881 is 1882618324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4238010000 + 152881 = 65100^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 4238162881 - 2³¹ = 2090679233 is a prime.

It is a super-2 number, since 2×4238162881² = 35924049211772440322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4238162821) 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, 2119081440 + 2119081441.

It is an arithmetic number, because the mean of its divisors is an integer number (2119081441).

Almost surely, 2^4238162881 is an apocalyptic number.

It is an amenable number.

4238162881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238162881 is an equidigital number, since it uses as much as digits as its factorization.

4238162881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 43.

The square root of 4238162881 is about 65101.1741906396. The cubic root of 4238162881 is about 1618.3006721042.

The spelling of 4238162881 in words is "four billion, two hundred thirty-eight million, one hundred sixty-two thousand, eight hundred eighty-one".