97517799656217 has 12 divisors (see below), whose sum is σ = 146983350206784. Its totient is φ = 62185263548760.

The previous prime is 97517799656203. The next prime is 97517799656219. The reversal of 97517799656217 is 71265699771579.

97517799656217 is a `hidden beast` number, since 9 + 7 + 517 + 7 + 9 + 96 + 5 + 6 + 2 + 1 + 7 = 666.

It is not a de Polignac number, because 97517799656217 - 2⁷ = 97517799656089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97517799656219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235550240509 + ... + 235550240922.

It is an arithmetic number, because the mean of its divisors is an integer number (12248612517232).

Almost surely, 2^{97517799656217} is an apocalyptic number.

It is an amenable number.

97517799656217 is a deficient number, since it is larger than the sum of its proper divisors (49465550550567).

97517799656217 is a wasteful number, since it uses less digits than its factorization.

97517799656217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471100481460 (or 471100481457 counting only the distinct ones).

The product of its digits is 3150592200, while the sum is 81.

The spelling of 97517799656217 in words is "ninety-seven trillion, five hundred seventeen billion, seven hundred ninety-nine million, six hundred fifty-six thousand, two hundred seventeen".