63102065261 has 2 divisors, whose sum is σ = 63102065262. Its totient is φ = 63102065260.

The previous prime is 63102065237. The next prime is 63102065297. The reversal of 63102065261 is 16256020136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63035642761 + 66422500 = 251069^2 + 8150^2 .

It is a cyclic number.

It is not a de Polignac number, because 63102065261 - 2³⁰ = 62028323437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63102065231) 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, 31551032630 + 31551032631.

It is an arithmetic number, because the mean of its divisors is an integer number (31551032631).

Almost surely, 2^63102065261 is an apocalyptic number.

It is an amenable number.

63102065261 is a deficient number, since it is larger than the sum of its proper divisors (1).

63102065261 is an equidigital number, since it uses as much as digits as its factorization.

63102065261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 63102065261 its reverse (16256020136), we get a palindrome (79358085397).

The spelling of 63102065261 in words is "sixty-three billion, one hundred two million, sixty-five thousand, two hundred sixty-one".