7228643730169 has 2 divisors, whose sum is σ = 7228643730170. Its totient is φ = 7228643730168.

The previous prime is 7228643730149. The next prime is 7228643730181. The reversal of 7228643730169 is 9610373468227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6823144773225 + 405498956944 = 2612115^2 + 636788^2 .

It is a cyclic number.

It is not a de Polignac number, because 7228643730169 - 2⁵ = 7228643730137 is a prime.

It is a super-2 number, since 2×7228643730169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7228643730149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3614321865084 + 3614321865085.

It is an arithmetic number, because the mean of its divisors is an integer number (3614321865085).

Almost surely, 2^{7228643730169} is an apocalyptic number.

It is an amenable number.

7228643730169 is a deficient number, since it is larger than the sum of its proper divisors (1).

7228643730169 is an equidigital number, since it uses as much as digits as its factorization.

7228643730169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 7228643730169 in words is "seven trillion, two hundred twenty-eight billion, six hundred forty-three million, seven hundred thirty thousand, one hundred sixty-nine".