2277008681 has 2 divisors, whose sum is σ = 2277008682. Its totient is φ = 2277008680.

The previous prime is 2277008609. The next prime is 2277008693. The reversal of 2277008681 is 1868007722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2188742656 + 88266025 = 46784^2 + 9395^2 .

It is a cyclic number.

It is not a de Polignac number, because 2277008681 - 2¹⁰ = 2277007657 is a prime.

It is a super-2 number, since 2×2277008681² = 10369537066698719522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2277008281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138504340 + 1138504341.

It is an arithmetic number, because the mean of its divisors is an integer number (1138504341).

Almost surely, 2^2277008681 is an apocalyptic number.

It is an amenable number.

2277008681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2277008681 is an equidigital number, since it uses as much as digits as its factorization.

2277008681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 2277008681 is about 47718.0121233062. The cubic root of 2277008681 is about 1315.5930245093.

The spelling of 2277008681 in words is "two billion, two hundred seventy-seven million, eight thousand, six hundred eighty-one".