12636629237 has 2 divisors, whose sum is σ = 12636629238. Its totient is φ = 12636629236.

The previous prime is 12636629221. The next prime is 12636629267. The reversal of 12636629237 is 73292663621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9499621156 + 3137008081 = 97466^2 + 56009^2 .

It is a cyclic number.

It is not a de Polignac number, because 12636629237 - 2⁴ = 12636629221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12636629191 and 12636629200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12636629267) 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, 6318314618 + 6318314619.

It is an arithmetic number, because the mean of its divisors is an integer number (6318314619).

Almost surely, 2^12636629237 is an apocalyptic number.

It is an amenable number.

12636629237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12636629237 is an equidigital number, since it uses as much as digits as its factorization.

12636629237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 47.

The spelling of 12636629237 in words is "twelve billion, six hundred thirty-six million, six hundred twenty-nine thousand, two hundred thirty-seven".