636134354017 has 2 divisors, whose sum is σ = 636134354018. Its totient is φ = 636134354016.

The previous prime is 636134353973. The next prime is 636134354027. The reversal of 636134354017 is 710453431636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323805383521 + 312328970496 = 569039^2 + 558864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636134354017 is a prime.

It is not a weakly prime, because it can be changed into another prime (636134354027) 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, 318067177008 + 318067177009.

It is an arithmetic number, because the mean of its divisors is an integer number (318067177009).

Almost surely, 2^636134354017 is an apocalyptic number.

It is an amenable number.

636134354017 is a deficient number, since it is larger than the sum of its proper divisors (1).

636134354017 is an equidigital number, since it uses as much as digits as its factorization.

636134354017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 636134354017 in words is "six hundred thirty-six billion, one hundred thirty-four million, three hundred fifty-four thousand, seventeen".