63327611308861 has 2 divisors, whose sum is σ = 63327611308862. Its totient is φ = 63327611308860.

The previous prime is 63327611308811. The next prime is 63327611308873. The reversal of 63327611308861 is 16880311672336.

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., 63264763827225 + 62847481636 = 7953915^2 + 250694^2 .

It is a cyclic number.

It is not a de Polignac number, because 63327611308861 - 2⁹ = 63327611308349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63327611308811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31663805654430 + 31663805654431.

It is an arithmetic number, because the mean of its divisors is an integer number (31663805654431).

Almost surely, 2^{63327611308861} is an apocalyptic number.

It is an amenable number.

63327611308861 is a deficient number, since it is larger than the sum of its proper divisors (1).

63327611308861 is an equidigital number, since it uses as much as digits as its factorization.

63327611308861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 63327611308861 in words is "sixty-three trillion, three hundred twenty-seven billion, six hundred eleven million, three hundred eight thousand, eight hundred sixty-one".