27440272273 has 2 divisors, whose sum is σ = 27440272274. Its totient is φ = 27440272272.

The previous prime is 27440272267. The next prime is 27440272289. The reversal of 27440272273 is 37227204472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23713536064 + 3726736209 = 153992^2 + 61047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27440272273 is a prime.

It is not a weakly prime, because it can be changed into another prime (27440272073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13720136136 + 13720136137.

It is an arithmetic number, because the mean of its divisors is an integer number (13720136137).

Almost surely, 2^27440272273 is an apocalyptic number.

It is an amenable number.

27440272273 is a deficient number, since it is larger than the sum of its proper divisors (1).

27440272273 is an equidigital number, since it uses as much as digits as its factorization.

27440272273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424, while the sum is 40.

The spelling of 27440272273 in words is "twenty-seven billion, four hundred forty million, two hundred seventy-two thousand, two hundred seventy-three".