4239584681 has 2 divisors, whose sum is σ = 4239584682. Its totient is φ = 4239584680.

The previous prime is 4239584659. The next prime is 4239584689. The reversal of 4239584681 is 1864859324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4106759056 + 132825625 = 64084^2 + 11525^2 .

It is a cyclic number.

It is not a de Polignac number, because 4239584681 - 2¹⁰ = 4239583657 is a prime.

It is a super-2 number, since 2×4239584681² = 35948156534739743522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4239584689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119792340 + 2119792341.

It is an arithmetic number, because the mean of its divisors is an integer number (2119792341).

Almost surely, 2^4239584681 is an apocalyptic number.

It is an amenable number.

4239584681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4239584681 is an equidigital number, since it uses as much as digits as its factorization.

4239584681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 50.

The square root of 4239584681 is about 65112.0932008794. The cubic root of 4239584681 is about 1618.4816186377.

The spelling of 4239584681 in words is "four billion, two hundred thirty-nine million, five hundred eighty-four thousand, six hundred eighty-one".