27882806069 has 2 divisors, whose sum is σ = 27882806070. Its totient is φ = 27882806068.

The previous prime is 27882806057. The next prime is 27882806153. The reversal of 27882806069 is 96060828872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24169366225 + 3713439844 = 155465^2 + 60938^2 .

It is a cyclic number.

It is not a de Polignac number, because 27882806069 - 2³² = 23587838773 is a prime.

It is a super-2 number, since 2×27882806069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27882806669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13941403034 + 13941403035.

It is an arithmetic number, because the mean of its divisors is an integer number (13941403035).

Almost surely, 2^27882806069 is an apocalyptic number.

It is an amenable number.

27882806069 is a deficient number, since it is larger than the sum of its proper divisors (1).

27882806069 is an equidigital number, since it uses as much as digits as its factorization.

27882806069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 27882806069 in words is "twenty-seven billion, eight hundred eighty-two million, eight hundred six thousand, sixty-nine".