27883506121 has 2 divisors, whose sum is σ = 27883506122. Its totient is φ = 27883506120.

The previous prime is 27883506037. The next prime is 27883506127. The reversal of 27883506121 is 12160538872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25853102521 + 2030403600 = 160789^2 + 45060^2 .

It is a cyclic number.

It is not a de Polignac number, because 27883506121 - 2¹¹ = 27883504073 is a prime.

It is not a weakly prime, because it can be changed into another prime (27883506127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13941753060 + 13941753061.

It is an arithmetic number, because the mean of its divisors is an integer number (13941753061).

Almost surely, 2^27883506121 is an apocalyptic number.

It is an amenable number.

27883506121 is a deficient number, since it is larger than the sum of its proper divisors (1).

27883506121 is an equidigital number, since it uses as much as digits as its factorization.

27883506121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 27883506121 in words is "twenty-seven billion, eight hundred eighty-three million, five hundred six thousand, one hundred twenty-one".