4238314991 has 2 divisors, whose sum is σ = 4238314992. Its totient is φ = 4238314990.

The previous prime is 4238314921. The next prime is 4238315023. The reversal of 4238314991 is 1994138324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4238314991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4238314901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119157495 + 2119157496.

It is an arithmetic number, because the mean of its divisors is an integer number (2119157496).

Almost surely, 2^4238314991 is an apocalyptic number.

4238314991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238314991 is an equidigital number, since it uses as much as digits as its factorization.

4238314991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 4238314991 is about 65102.3424386558. The cubic root of 4238314991 is about 1618.3200324401.

The spelling of 4238314991 in words is "four billion, two hundred thirty-eight million, three hundred fourteen thousand, nine hundred ninety-one".