63125762729 has 2 divisors, whose sum is σ = 63125762730. Its totient is φ = 63125762728.

The previous prime is 63125762663. The next prime is 63125762743. The reversal of 63125762729 is 92726752136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58806250000 + 4319512729 = 242500^2 + 65723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63125762729 is a prime.

It is not a weakly prime, because it can be changed into another prime (63125762779) 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, 31562881364 + 31562881365.

It is an arithmetic number, because the mean of its divisors is an integer number (31562881365).

Almost surely, 2^63125762729 is an apocalyptic number.

It is an amenable number.

63125762729 is a deficient number, since it is larger than the sum of its proper divisors (1).

63125762729 is an equidigital number, since it uses as much as digits as its factorization.

63125762729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 50.

The spelling of 63125762729 in words is "sixty-three billion, one hundred twenty-five million, seven hundred sixty-two thousand, seven hundred twenty-nine".