8233955643197 has 2 divisors, whose sum is σ = 8233955643198. Its totient is φ = 8233955643196.

The previous prime is 8233955643161. The next prime is 8233955643209. The reversal of 8233955643197 is 7913465593328.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6890236505476 + 1343719137721 = 2624926^2 + 1159189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8233955643197 is a prime.

It is a super-3 number, since 3×8233955643197³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8233955643107) 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, 4116977821598 + 4116977821599.

It is an arithmetic number, because the mean of its divisors is an integer number (4116977821599).

Almost surely, 2^{8233955643197} is an apocalyptic number.

It is an amenable number.

8233955643197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8233955643197 is an equidigital number, since it uses as much as digits as its factorization.

8233955643197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146966400, while the sum is 65.

The spelling of 8233955643197 in words is "eight trillion, two hundred thirty-three billion, nine hundred fifty-five million, six hundred forty-three thousand, one hundred ninety-seven".