12632527009 has 2 divisors, whose sum is σ = 12632527010. Its totient is φ = 12632527008.

The previous prime is 12632527007. The next prime is 12632527021. The reversal of 12632527009 is 90072523621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12122670609 + 509856400 = 110103^2 + 22580^2 .

It is an emirp because it is prime and its reverse (90072523621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12632527009 - 2¹ = 12632527007 is a prime.

It is a super-2 number, since 2×12632527009² (a number of 21 digits) contains 22 as substring.

Together with 12632527007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12632527007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6316263504 + 6316263505.

It is an arithmetic number, because the mean of its divisors is an integer number (6316263505).

Almost surely, 2^12632527009 is an apocalyptic number.

It is an amenable number.

12632527009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12632527009 is an equidigital number, since it uses as much as digits as its factorization.

12632527009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 12632527009 in words is "twelve billion, six hundred thirty-two million, five hundred twenty-seven thousand, nine".