27472952317 has 2 divisors, whose sum is σ = 27472952318. Its totient is φ = 27472952316.

The previous prime is 27472952263. The next prime is 27472952333. The reversal of 27472952317 is 71325927472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23551813156 + 3921139161 = 153466^2 + 62619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27472952317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27472953317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13736476158 + 13736476159.

It is an arithmetic number, because the mean of its divisors is an integer number (13736476159).

Almost surely, 2^27472952317 is an apocalyptic number.

It is an amenable number.

27472952317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27472952317 is an equidigital number, since it uses as much as digits as its factorization.

27472952317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481760, while the sum is 49.

The spelling of 27472952317 in words is "twenty-seven billion, four hundred seventy-two million, nine hundred fifty-two thousand, three hundred seventeen".