63408891220141 has 2 divisors, whose sum is σ = 63408891220142. Its totient is φ = 63408891220140.

The previous prime is 63408891220139. The next prime is 63408891220151. The reversal of 63408891220141 is 14102219880436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44522870122116 + 18886021098025 = 6672546^2 + 4345805^2 .

It is a cyclic number.

It is not a de Polignac number, because 63408891220141 - 2¹ = 63408891220139 is a prime.

Together with 63408891220139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63408891220111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31704445610070 + 31704445610071.

It is an arithmetic number, because the mean of its divisors is an integer number (31704445610071).

Almost surely, 2^{63408891220141} is an apocalyptic number.

It is an amenable number.

63408891220141 is a deficient number, since it is larger than the sum of its proper divisors (1).

63408891220141 is an equidigital number, since it uses as much as digits as its factorization.

63408891220141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 63408891220141 in words is "sixty-three trillion, four hundred eight billion, eight hundred ninety-one million, two hundred twenty thousand, one hundred forty-one".