63510950257 has 2 divisors, whose sum is σ = 63510950258. Its totient is φ = 63510950256.

The previous prime is 63510950231. The next prime is 63510950263. The reversal of 63510950257 is 75205901536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45640340496 + 17870609761 = 213636^2 + 133681^2 .

It is a cyclic number.

It is not a de Polignac number, because 63510950257 - 2¹¹ = 63510948209 is a prime.

It is not a weakly prime, because it can be changed into another prime (63510950207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31755475128 + 31755475129.

It is an arithmetic number, because the mean of its divisors is an integer number (31755475129).

Almost surely, 2^63510950257 is an apocalyptic number.

It is an amenable number.

63510950257 is a deficient number, since it is larger than the sum of its proper divisors (1).

63510950257 is an equidigital number, since it uses as much as digits as its factorization.

63510950257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 283500, while the sum is 43.

The spelling of 63510950257 in words is "sixty-three billion, five hundred ten million, nine hundred fifty thousand, two hundred fifty-seven".