27776649611 has 2 divisors, whose sum is σ = 27776649612. Its totient is φ = 27776649610.

The previous prime is 27776649539. The next prime is 27776649617. The reversal of 27776649611 is 11694667772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27776649611 - 2³⁰ = 26702907787 is a prime.

It is a super-2 number, since 2×27776649611² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27776649617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888324805 + 13888324806.

It is an arithmetic number, because the mean of its divisors is an integer number (13888324806).

Almost surely, 2^27776649611 is an apocalyptic number.

27776649611 is a deficient number, since it is larger than the sum of its proper divisors (1).

27776649611 is an equidigital number, since it uses as much as digits as its factorization.

27776649611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 56.

The spelling of 27776649611 in words is "twenty-seven billion, seven hundred seventy-six million, six hundred forty-nine thousand, six hundred eleven".