12636754201 has 2 divisors, whose sum is σ = 12636754202. Its totient is φ = 12636754200.

The previous prime is 12636754199. The next prime is 12636754241. The reversal of 12636754201 is 10245763621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11833088400 + 803665801 = 108780^2 + 28349^2 .

It is an emirp because it is prime and its reverse (10245763621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12636754201 - 2¹ = 12636754199 is a prime.

It is a super-2 number, since 2×12636754201² (a number of 21 digits) contains 22 as substring.

Together with 12636754199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12636754241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6318377100 + 6318377101.

It is an arithmetic number, because the mean of its divisors is an integer number (6318377101).

Almost surely, 2^12636754201 is an apocalyptic number.

It is an amenable number.

12636754201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12636754201 is an equidigital number, since it uses as much as digits as its factorization.

12636754201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

It can be divided in two parts, 1263675 and 4201, that added together give a square (1267876 = 1126²).

The spelling of 12636754201 in words is "twelve billion, six hundred thirty-six million, seven hundred fifty-four thousand, two hundred one".