2636644516013 has 2 divisors, whose sum is σ = 2636644516014. Its totient is φ = 2636644516012.

The previous prime is 2636644516003. The next prime is 2636644516039. The reversal of 2636644516013 is 3106154466362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007132393289 + 629512122724 = 1416733^2 + 793418^2 .

It is a cyclic number.

It is not a de Polignac number, because 2636644516013 - 2⁴ = 2636644515997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2636644516003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318322258006 + 1318322258007.

It is an arithmetic number, because the mean of its divisors is an integer number (1318322258007).

Almost surely, 2^{2636644516013} is an apocalyptic number.

It is an amenable number.

2636644516013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2636644516013 is an equidigital number, since it uses as much as digits as its factorization.

2636644516013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 2636644516013 in words is "two trillion, six hundred thirty-six billion, six hundred forty-four million, five hundred sixteen thousand, thirteen".