3640651573213 has 2 divisors, whose sum is σ = 3640651573214. Its totient is φ = 3640651573212.

The previous prime is 3640651573189. The next prime is 3640651573379. The reversal of 3640651573213 is 3123751560463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3063837145924 + 576814427289 = 1750382^2 + 759483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3640651573213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3640651571213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820325786606 + 1820325786607.

It is an arithmetic number, because the mean of its divisors is an integer number (1820325786607).

Almost surely, 2^{3640651573213} is an apocalyptic number.

It is an amenable number.

3640651573213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640651573213 is an equidigital number, since it uses as much as digits as its factorization.

3640651573213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 3640651573213 in words is "three trillion, six hundred forty billion, six hundred fifty-one million, five hundred seventy-three thousand, two hundred thirteen".