27380913853 has 2 divisors, whose sum is σ = 27380913854. Its totient is φ = 27380913852.

The previous prime is 27380913839. The next prime is 27380913871. The reversal of 27380913853 is 35831908372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25562573689 + 1818340164 = 159883^2 + 42642^2 .

It is a cyclic number.

It is not a de Polignac number, because 27380913853 - 2²⁹ = 26844042941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27380913797 and 27380913806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27380913883) 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, 13690456926 + 13690456927.

It is an arithmetic number, because the mean of its divisors is an integer number (13690456927).

Almost surely, 2^27380913853 is an apocalyptic number.

It is an amenable number.

27380913853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27380913853 is an equidigital number, since it uses as much as digits as its factorization.

27380913853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 27380913853 in words is "twenty-seven billion, three hundred eighty million, nine hundred thirteen thousand, eight hundred fifty-three".