4122795681 has 27 divisors (see below), whose sum is σ = 6331086931. Its totient is φ = 2584797504.

The previous prime is 4122795637. The next prime is 4122795689. The reversal of 4122795681 is 1865972214.

The square root of 4122795681 is 64209.

It is a perfect power (a square), and thus also a powerful number.

4122795681 is a `hidden beast` number, since 4 + 12 + 2 + 79 + 568 + 1 = 666.

4122795681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3209789025 + 913006656 = 56655^2 + 30216^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4122795681 is a prime.

It is a super-2 number, since 2×4122795681² = 33994888454544507522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122795689) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3274030 + ... + 3275288.

Almost surely, 2^4122795681 is an apocalyptic number.

4122795681 is the 64209-th square number.

4122795681 is the 32105-th centered octagonal number.

It is an amenable number.

4122795681 is a deficient number, since it is larger than the sum of its proper divisors (2208291250).

4122795681 is an equidigital number, since it uses as much as digits as its factorization.

4122795681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558 (or 1279 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The cubic root of 4122795681 is about 1603.4814402030.

The spelling of 4122795681 in words is "four billion, one hundred twenty-two million, seven hundred ninety-five thousand, six hundred eighty-one".