9968532517 has 2 divisors, whose sum is σ = 9968532518. Its totient is φ = 9968532516.

The previous prime is 9968532461. The next prime is 9968532527. The reversal of 9968532517 is 7152358699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8271174916 + 1697357601 = 90946^2 + 41199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9968532517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968532527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984266258 + 4984266259.

It is an arithmetic number, because the mean of its divisors is an integer number (4984266259).

Almost surely, 2^9968532517 is an apocalyptic number.

It is an amenable number.

9968532517 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968532517 is an equidigital number, since it uses as much as digits as its factorization.

9968532517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 55.

The square root of 9968532517 is about 99842.5386145605. The cubic root of 9968532517 is about 2152.1724942837.

The spelling of 9968532517 in words is "nine billion, nine hundred sixty-eight million, five hundred thirty-two thousand, five hundred seventeen".