2644365053633 has 2 divisors, whose sum is σ = 2644365053634. Its totient is φ = 2644365053632.

The previous prime is 2644365053611. The next prime is 2644365053711. The reversal of 2644365053633 is 3363505634462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1898131686529 + 746233367104 = 1377727^2 + 863848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2644365053633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2644365053333) 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, 1322182526816 + 1322182526817.

It is an arithmetic number, because the mean of its divisors is an integer number (1322182526817).

Almost surely, 2^{2644365053633} is an apocalyptic number.

It is an amenable number.

2644365053633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644365053633 is an equidigital number, since it uses as much as digits as its factorization.

2644365053633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 50.

The spelling of 2644365053633 in words is "two trillion, six hundred forty-four billion, three hundred sixty-five million, fifty-three thousand, six hundred thirty-three".