63446520113 has 2 divisors, whose sum is σ = 63446520114. Its totient is φ = 63446520112.

The previous prime is 63446520041. The next prime is 63446520121. The reversal of 63446520113 is 31102564436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62728708849 + 717811264 = 250457^2 + 26792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63446520113 is a prime.

It is not a weakly prime, because it can be changed into another prime (63446523113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31723260056 + 31723260057.

It is an arithmetic number, because the mean of its divisors is an integer number (31723260057).

Almost surely, 2^63446520113 is an apocalyptic number.

It is an amenable number.

63446520113 is a deficient number, since it is larger than the sum of its proper divisors (1).

63446520113 is an equidigital number, since it uses as much as digits as its factorization.

63446520113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 63446520113 in words is "sixty-three billion, four hundred forty-six million, five hundred twenty thousand, one hundred thirteen".