7117805389817 has 2 divisors, whose sum is σ = 7117805389818. Its totient is φ = 7117805389816.

The previous prime is 7117805389741. The next prime is 7117805389819. The reversal of 7117805389817 is 7189835087117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7116628625401 + 1176764416 = 2667701^2 + 34304^2 .

It is a cyclic number.

It is not a de Polignac number, because 7117805389817 - 2³⁶ = 7049085913081 is a prime.

Together with 7117805389819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7117805389819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558902694908 + 3558902694909.

It is an arithmetic number, because the mean of its divisors is an integer number (3558902694909).

Almost surely, 2^{7117805389817} is an apocalyptic number.

It is an amenable number.

7117805389817 is a deficient number, since it is larger than the sum of its proper divisors (1).

7117805389817 is an equidigital number, since it uses as much as digits as its factorization.

7117805389817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23708160, while the sum is 65.

The spelling of 7117805389817 in words is "seven trillion, one hundred seventeen billion, eight hundred five million, three hundred eighty-nine thousand, eight hundred seventeen".