27698410673 has 2 divisors, whose sum is σ = 27698410674. Its totient is φ = 27698410672.

The previous prime is 27698410639. The next prime is 27698410699. The reversal of 27698410673 is 37601489672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23059029904 + 4639380769 = 151852^2 + 68113^2 .

It is a cyclic number.

It is not a de Polignac number, because 27698410673 - 2¹⁰ = 27698409649 is a prime.

It is not a weakly prime, because it can be changed into another prime (27698410073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13849205336 + 13849205337.

It is an arithmetic number, because the mean of its divisors is an integer number (13849205337).

Almost surely, 2^27698410673 is an apocalyptic number.

It is an amenable number.

27698410673 is a deficient number, since it is larger than the sum of its proper divisors (1).

27698410673 is an equidigital number, since it uses as much as digits as its factorization.

27698410673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 27698410673 in words is "twenty-seven billion, six hundred ninety-eight million, four hundred ten thousand, six hundred seventy-three".