63756122641 has 2 divisors, whose sum is σ = 63756122642. Its totient is φ = 63756122640.

The previous prime is 63756122603. The next prime is 63756122653. The reversal of 63756122641 is 14622165736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58845056400 + 4911066241 = 242580^2 + 70079^2 .

It is a cyclic number.

It is not a de Polignac number, because 63756122641 - 2⁷ = 63756122513 is a prime.

It is not a weakly prime, because it can be changed into another prime (63756122671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31878061320 + 31878061321.

It is an arithmetic number, because the mean of its divisors is an integer number (31878061321).

Almost surely, 2^63756122641 is an apocalyptic number.

It is an amenable number.

63756122641 is a deficient number, since it is larger than the sum of its proper divisors (1).

63756122641 is an equidigital number, since it uses as much as digits as its factorization.

63756122641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The spelling of 63756122641 in words is "sixty-three billion, seven hundred fifty-six million, one hundred twenty-two thousand, six hundred forty-one".