27144325361 has 2 divisors, whose sum is σ = 27144325362. Its totient is φ = 27144325360.

The previous prime is 27144325343. The next prime is 27144325387. The reversal of 27144325361 is 16352344172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24158795761 + 2985529600 = 155431^2 + 54640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27144325361 is a prime.

It is not a weakly prime, because it can be changed into another prime (27144325301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572162680 + 13572162681.

It is an arithmetic number, because the mean of its divisors is an integer number (13572162681).

Almost surely, 2^27144325361 is an apocalyptic number.

It is an amenable number.

27144325361 is a deficient number, since it is larger than the sum of its proper divisors (1).

27144325361 is an equidigital number, since it uses as much as digits as its factorization.

27144325361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The spelling of 27144325361 in words is "twenty-seven billion, one hundred forty-four million, three hundred twenty-five thousand, three hundred sixty-one".