2636346316321 has 2 divisors, whose sum is σ = 2636346316322. Its totient is φ = 2636346316320.

The previous prime is 2636346316231. The next prime is 2636346316403. The reversal of 2636346316321 is 1236136436362.

Together with previous prime (2636346316231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2315266560000 + 321079756321 = 1521600^2 + 566639^2 .

It is a cyclic number.

It is not a de Polignac number, because 2636346316321 - 2¹⁹ = 2636345792033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2636346316421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318173158160 + 1318173158161.

It is an arithmetic number, because the mean of its divisors is an integer number (1318173158161).

Almost surely, 2^{2636346316321} is an apocalyptic number.

It is an amenable number.

2636346316321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2636346316321 is an equidigital number, since it uses as much as digits as its factorization.

2636346316321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 46.

The spelling of 2636346316321 in words is "two trillion, six hundred thirty-six billion, three hundred forty-six million, three hundred sixteen thousand, three hundred twenty-one".