64432045646113 has 2 divisors, whose sum is σ = 64432045646114. Its totient is φ = 64432045646112.

The previous prime is 64432045646027. The next prime is 64432045646131. The reversal of 64432045646113 is 31164654023446.

Together with next prime (64432045646131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58656252435169 + 5775793210944 = 7658737^2 + 2403288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64432045646113 is a prime.

It is a super-2 number, since 2×64432045646113² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64432042646113) 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, 32216022823056 + 32216022823057.

It is an arithmetic number, because the mean of its divisors is an integer number (32216022823057).

Almost surely, 2^{64432045646113} is an apocalyptic number.

It is an amenable number.

64432045646113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64432045646113 is an equidigital number, since it uses as much as digits as its factorization.

64432045646113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4976640, while the sum is 49.

Adding to 64432045646113 its reverse (31164654023446), we get a palindrome (95596699669559).

The spelling of 64432045646113 in words is "sixty-four trillion, four hundred thirty-two billion, forty-five million, six hundred forty-six thousand, one hundred thirteen".