63724722430561 has 2 divisors, whose sum is σ = 63724722430562. Its totient is φ = 63724722430560.

The previous prime is 63724722430543. The next prime is 63724722430583. The reversal of 63724722430561 is 16503422742736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52068404632336 + 11656317798225 = 7215844^2 + 3414135^2 .

It is a cyclic number.

It is not a de Polignac number, because 63724722430561 - 2⁵ = 63724722430529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63724722430499 and 63724722430508.

It is not a weakly prime, because it can be changed into another prime (63724722430511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31862361215280 + 31862361215281.

It is an arithmetic number, because the mean of its divisors is an integer number (31862361215281).

Almost surely, 2^{63724722430561} is an apocalyptic number.

It is an amenable number.

63724722430561 is a deficient number, since it is larger than the sum of its proper divisors (1).

63724722430561 is an equidigital number, since it uses as much as digits as its factorization.

63724722430561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10160640, while the sum is 52.

The spelling of 63724722430561 in words is "sixty-three trillion, seven hundred twenty-four billion, seven hundred twenty-two million, four hundred thirty thousand, five hundred sixty-one".