636134354027 has 2 divisors, whose sum is σ = 636134354028. Its totient is φ = 636134354026.

The previous prime is 636134354017. The next prime is 636134354047. The reversal of 636134354027 is 720453431636.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-636134354027 is a prime.

It is a super-2 number, since 2×636134354027² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (636134354017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318067177013 + 318067177014.

It is an arithmetic number, because the mean of its divisors is an integer number (318067177014).

Almost surely, 2^636134354027 is an apocalyptic number.

636134354027 is a deficient number, since it is larger than the sum of its proper divisors (1).

636134354027 is an equidigital number, since it uses as much as digits as its factorization.

636134354027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 44.

The spelling of 636134354027 in words is "six hundred thirty-six billion, one hundred thirty-four million, three hundred fifty-four thousand, twenty-seven".