65243634271 has 2 divisors, whose sum is σ = 65243634272. Its totient is φ = 65243634270.

The previous prime is 65243634221. The next prime is 65243634301. The reversal of 65243634271 is 17243634256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65243634271 - 2⁷ = 65243634143 is a prime.

It is a super-4 number, since 4×65243634271⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65243634221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32621817135 + 32621817136.

It is an arithmetic number, because the mean of its divisors is an integer number (32621817136).

Almost surely, 2^65243634271 is an apocalyptic number.

65243634271 is a deficient number, since it is larger than the sum of its proper divisors (1).

65243634271 is an equidigital number, since it uses as much as digits as its factorization.

65243634271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 43.

The spelling of 65243634271 in words is "sixty-five billion, two hundred forty-three million, six hundred thirty-four thousand, two hundred seventy-one".