27777248353 has 2 divisors, whose sum is σ = 27777248354. Its totient is φ = 27777248352.

The previous prime is 27777248351. The next prime is 27777248363. The reversal of 27777248353 is 35384277772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27064198144 + 713050209 = 164512^2 + 26703^2 .

It is a cyclic number.

It is not a de Polignac number, because 27777248353 - 2¹ = 27777248351 is a prime.

Together with 27777248351, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 27777248294 and 27777248303.

It is not a weakly prime, because it can be changed into another prime (27777248351) 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, 13888624176 + 13888624177.

It is an arithmetic number, because the mean of its divisors is an integer number (13888624177).

Almost surely, 2^27777248353 is an apocalyptic number.

It is an amenable number.

27777248353 is a deficient number, since it is larger than the sum of its proper divisors (1).

27777248353 is an equidigital number, since it uses as much as digits as its factorization.

27777248353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13829760, while the sum is 55.

The spelling of 27777248353 in words is "twenty-seven billion, seven hundred seventy-seven million, two hundred forty-eight thousand, three hundred fifty-three".