9996197923381 has 2 divisors, whose sum is σ = 9996197923382. Its totient is φ = 9996197923380.

The previous prime is 9996197923351. The next prime is 9996197923403. The reversal of 9996197923381 is 1833297916999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9920925062500 + 75272860881 = 3149750^2 + 274359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9996197923381 is a prime.

It is a super-2 number, since 2×9996197923381² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9996197923298 and 9996197923307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9996197923351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998098961690 + 4998098961691.

It is an arithmetic number, because the mean of its divisors is an integer number (4998098961691).

Almost surely, 2^{9996197923381} is an apocalyptic number.

It is an amenable number.

9996197923381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996197923381 is an equidigital number, since it uses as much as digits as its factorization.

9996197923381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357128352, while the sum is 76.

The spelling of 9996197923381 in words is "nine trillion, nine hundred ninety-six billion, one hundred ninety-seven million, nine hundred twenty-three thousand, three hundred eighty-one".