4235329981 has 2 divisors, whose sum is σ = 4235329982. Its totient is φ = 4235329980.

The previous prime is 4235329951. The next prime is 4235329999. The reversal of 4235329981 is 1899235324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2319867225 + 1915462756 = 48165^2 + 43766^2 .

It is a cyclic number.

It is not a de Polignac number, because 4235329981 - 2¹¹ = 4235327933 is a prime.

It is a super-2 number, since 2×4235329981² = 35876040095914920722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4235329951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117664990 + 2117664991.

It is an arithmetic number, because the mean of its divisors is an integer number (2117664991).

Almost surely, 2^4235329981 is an apocalyptic number.

It is an amenable number.

4235329981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4235329981 is an equidigital number, since it uses as much as digits as its factorization.

4235329981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 46.

The square root of 4235329981 is about 65079.4128814943. The cubic root of 4235329981 is about 1617.9400200996.

The spelling of 4235329981 in words is "four billion, two hundred thirty-five million, three hundred twenty-nine thousand, nine hundred eighty-one".