4244006681 has 2 divisors, whose sum is σ = 4244006682. Its totient is φ = 4244006680.

The previous prime is 4244006659. The next prime is 4244006707. The reversal of 4244006681 is 1866004424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3994872025 + 249134656 = 63205^2 + 15784^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244006681 - 2¹⁸ = 4243744537 is a prime.

It is a super-2 number, since 2×4244006681² = 36023185416745271522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4244006651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122003340 + 2122003341.

It is an arithmetic number, because the mean of its divisors is an integer number (2122003341).

Almost surely, 2^4244006681 is an apocalyptic number.

It is an amenable number.

4244006681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244006681 is an equidigital number, since it uses as much as digits as its factorization.

4244006681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 4244006681 is about 65146.0411767285. The cubic root of 4244006681 is about 1619.0441296231.

The spelling of 4244006681 in words is "four billion, two hundred forty-four million, six thousand, six hundred eighty-one".