63772266227729 has 2 divisors, whose sum is σ = 63772266227730. Its totient is φ = 63772266227728.

The previous prime is 63772266227701. The next prime is 63772266227737. The reversal of 63772266227729 is 92772266227736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50439142610704 + 13333123617025 = 7102052^2 + 3651455^2 .

It is a cyclic number.

It is not a de Polignac number, because 63772266227729 - 2⁴⁴ = 46180080183313 is a prime.

It is not a weakly prime, because it can be changed into another prime (63772266227749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31886133113864 + 31886133113865.

It is an arithmetic number, because the mean of its divisors is an integer number (31886133113865).

Almost surely, 2^{63772266227729} is an apocalyptic number.

It is an amenable number.

63772266227729 is a deficient number, since it is larger than the sum of its proper divisors (1).

63772266227729 is an equidigital number, since it uses as much as digits as its factorization.

63772266227729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448084224, while the sum is 68.

The spelling of 63772266227729 in words is "sixty-three trillion, seven hundred seventy-two billion, two hundred sixty-six million, two hundred twenty-seven thousand, seven hundred twenty-nine".