9996944730397 has 2 divisors, whose sum is σ = 9996944730398. Its totient is φ = 9996944730396.

The previous prime is 9996944730359. The next prime is 9996944730433. The reversal of 9996944730397 is 7930374496999.

9996944730397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5535192584601 + 4461752145796 = 2352699^2 + 2112286^2 .

It is a cyclic number.

It is not a de Polignac number, because 9996944730397 - 2³⁵ = 9962584992029 is a prime.

It is a super-2 number, since 2×9996944730397² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9996944730317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998472365198 + 4998472365199.

It is an arithmetic number, because the mean of its divisors is an integer number (4998472365199).

Almost surely, 2^{9996944730397} is an apocalyptic number.

It is an amenable number.

9996944730397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996944730397 is an equidigital number, since it uses as much as digits as its factorization.

9996944730397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2499898464, while the sum is 79.

The spelling of 9996944730397 in words is "nine trillion, nine hundred ninety-six billion, nine hundred forty-four million, seven hundred thirty thousand, three hundred ninety-seven".