9999997965193 has 2 divisors, whose sum is σ = 9999997965194. Its totient is φ = 9999997965192.

The previous prime is 9999997965103. The next prime is 9999997965233. The reversal of 9999997965193 is 3915697999999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8257737882384 + 1742260082809 = 2873628^2 + 1319947^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999997965193 - 2²⁹ = 9999461094281 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999997965103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999998982596 + 4999998982597.

It is an arithmetic number, because the mean of its divisors is an integer number (4999998982597).

Almost surely, 2^{9999997965193} is an apocalyptic number.

It is an amenable number.

9999997965193 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999997965193 is an equidigital number, since it uses as much as digits as its factorization.

9999997965193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27119434230, while the sum is 94.

The spelling of 9999997965193 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-seven million, nine hundred sixty-five thousand, one hundred ninety-three".