65743636419281 has 2 divisors, whose sum is σ = 65743636419282. Its totient is φ = 65743636419280.

The previous prime is 65743636419217. The next prime is 65743636419289. The reversal of 65743636419281 is 18291463634756.

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., 65636570689600 + 107065729681 = 8101640^2 + 327209^2 .

It is a cyclic number.

It is not a de Polignac number, because 65743636419281 - 2⁶ = 65743636419217 is a prime.

It is a super-2 number, since 2×65743636419281² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65743636419289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32871818209640 + 32871818209641.

It is an arithmetic number, because the mean of its divisors is an integer number (32871818209641).

Almost surely, 2^{65743636419281} is an apocalyptic number.

It is an amenable number.

65743636419281 is a deficient number, since it is larger than the sum of its proper divisors (1).

65743636419281 is an equidigital number, since it uses as much as digits as its factorization.

65743636419281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 65.

The spelling of 65743636419281 in words is "sixty-five trillion, seven hundred forty-three billion, six hundred thirty-six million, four hundred nineteen thousand, two hundred eighty-one".