27489322373 has 2 divisors, whose sum is σ = 27489322374. Its totient is φ = 27489322372.

The previous prime is 27489322319. The next prime is 27489322403. The reversal of 27489322373 is 37322398472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21181309444 + 6308012929 = 145538^2 + 79423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27489322373 is a prime.

It is a super-2 number, since 2×27489322373² (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 (27489322573) 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, 13744661186 + 13744661187.

It is an arithmetic number, because the mean of its divisors is an integer number (13744661187).

Almost surely, 2^27489322373 is an apocalyptic number.

It is an amenable number.

27489322373 is a deficient number, since it is larger than the sum of its proper divisors (1).

27489322373 is an equidigital number, since it uses as much as digits as its factorization.

27489322373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 50.

The spelling of 27489322373 in words is "twenty-seven billion, four hundred eighty-nine million, three hundred twenty-two thousand, three hundred seventy-three".