63772417129 has 2 divisors, whose sum is σ = 63772417130. Its totient is φ = 63772417128.

The previous prime is 63772417063. The next prime is 63772417139. The reversal of 63772417129 is 92171427736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48679803225 + 15092613904 = 220635^2 + 122852^2 .

It is a cyclic number.

It is not a de Polignac number, because 63772417129 - 2¹³ = 63772408937 is a prime.

It is not a weakly prime, because it can be changed into another prime (63772417139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31886208564 + 31886208565.

It is an arithmetic number, because the mean of its divisors is an integer number (31886208565).

Almost surely, 2^63772417129 is an apocalyptic number.

It is an amenable number.

63772417129 is a deficient number, since it is larger than the sum of its proper divisors (1).

63772417129 is an equidigital number, since it uses as much as digits as its factorization.

63772417129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The spelling of 63772417129 in words is "sixty-three billion, seven hundred seventy-two million, four hundred seventeen thousand, one hundred twenty-nine".