63449662741 has 2 divisors, whose sum is σ = 63449662742. Its totient is φ = 63449662740.

The previous prime is 63449662739. The next prime is 63449662781. The reversal of 63449662741 is 14726694436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32207686225 + 31241976516 = 179465^2 + 176754^2 .

It is a cyclic number.

It is not a de Polignac number, because 63449662741 - 2¹ = 63449662739 is a prime.

Together with 63449662739, 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 (63449662781) 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, 31724831370 + 31724831371.

It is an arithmetic number, because the mean of its divisors is an integer number (31724831371).

Almost surely, 2^63449662741 is an apocalyptic number.

It is an amenable number.

63449662741 is a deficient number, since it is larger than the sum of its proper divisors (1).

63449662741 is an equidigital number, since it uses as much as digits as its factorization.

63449662741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 52.

The spelling of 63449662741 in words is "sixty-three billion, four hundred forty-nine million, six hundred sixty-two thousand, seven hundred forty-one".