27622998317 has 2 divisors, whose sum is σ = 27622998318. Its totient is φ = 27622998316.

The previous prime is 27622998269. The next prime is 27622998331. The reversal of 27622998317 is 71389922672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16917164356 + 10705833961 = 130066^2 + 103469^2 .

It is a cyclic number.

It is not a de Polignac number, because 27622998317 - 2⁶ = 27622998253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27622997317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13811499158 + 13811499159.

It is an arithmetic number, because the mean of its divisors is an integer number (13811499159).

Almost surely, 2^27622998317 is an apocalyptic number.

It is an amenable number.

27622998317 is a deficient number, since it is larger than the sum of its proper divisors (1).

27622998317 is an equidigital number, since it uses as much as digits as its factorization.

27622998317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 56.

The spelling of 27622998317 in words is "twenty-seven billion, six hundred twenty-two million, nine hundred ninety-eight thousand, three hundred seventeen".