8449045949717 has 2 divisors, whose sum is σ = 8449045949718. Its totient is φ = 8449045949716.

The previous prime is 8449045949647. The next prime is 8449045949783. The reversal of 8449045949717 is 7179495409448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5105977448881 + 3343068500836 = 2259641^2 + 1828406^2 .

It is a cyclic number.

It is not a de Polignac number, because 8449045949717 - 2¹⁸ = 8449045687573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8449845949717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4224522974858 + 4224522974859.

It is an arithmetic number, because the mean of its divisors is an integer number (4224522974859).

Almost surely, 2^{8449045949717} is an apocalyptic number.

It is an amenable number.

8449045949717 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449045949717 is an equidigital number, since it uses as much as digits as its factorization.

8449045949717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 365783040, while the sum is 71.

The spelling of 8449045949717 in words is "eight trillion, four hundred forty-nine billion, forty-five million, nine hundred forty-nine thousand, seven hundred seventeen".