2772826681 has 2 divisors, whose sum is σ = 2772826682. Its totient is φ = 2772826680.

The previous prime is 2772826613. The next prime is 2772826703. The reversal of 2772826681 is 1866282772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2336852281 + 435974400 = 48341^2 + 20880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2772826681 - 2²⁷ = 2638608953 is a prime.

It is a super-2 number, since 2×2772826681² = 15377135605730951522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2772826081) 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, 1386413340 + 1386413341.

It is an arithmetic number, because the mean of its divisors is an integer number (1386413341).

Almost surely, 2^2772826681 is an apocalyptic number.

It is an amenable number.

2772826681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2772826681 is an equidigital number, since it uses as much as digits as its factorization.

2772826681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 49.

The square root of 2772826681 is about 52657.6364927253. The cubic root of 2772826681 is about 1404.8854287852.

The spelling of 2772826681 in words is "two billion, seven hundred seventy-two million, eight hundred twenty-six thousand, six hundred eighty-one".