5644786076789 has 2 divisors, whose sum is σ = 5644786076790. Its totient is φ = 5644786076788.

The previous prime is 5644786076771. The next prime is 5644786076849. The reversal of 5644786076789 is 9876706874465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5644582443889 + 203632900 = 2375833^2 + 14270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644786076789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644786076759) 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, 2822393038394 + 2822393038395.

It is an arithmetic number, because the mean of its divisors is an integer number (2822393038395).

Almost surely, 2^{5644786076789} is an apocalyptic number.

It is an amenable number.

5644786076789 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644786076789 is an equidigital number, since it uses as much as digits as its factorization.

5644786076789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3413975040, while the sum is 77.

The spelling of 5644786076789 in words is "five trillion, six hundred forty-four billion, seven hundred eighty-six million, seventy-six thousand, seven hundred eighty-nine".