63988837159213 has 2 divisors, whose sum is σ = 63988837159214. Its totient is φ = 63988837159212.

The previous prime is 63988837159201. The next prime is 63988837159217. The reversal of 63988837159213 is 31295173888936.

63988837159213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44339857157124 + 19648980002089 = 6658818^2 + 4432717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63988837159213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63988837159217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31994418579606 + 31994418579607.

It is an arithmetic number, because the mean of its divisors is an integer number (31994418579607).

Almost surely, 2^{63988837159213} is an apocalyptic number.

It is an amenable number.

63988837159213 is a deficient number, since it is larger than the sum of its proper divisors (1).

63988837159213 is an equidigital number, since it uses as much as digits as its factorization.

63988837159213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470292480, while the sum is 73.

The spelling of 63988837159213 in words is "sixty-three trillion, nine hundred eighty-eight billion, eight hundred thirty-seven million, one hundred fifty-nine thousand, two hundred thirteen".