6944935561 has 2 divisors, whose sum is σ = 6944935562. Its totient is φ = 6944935560.

The previous prime is 6944935559. The next prime is 6944935579. The reversal of 6944935561 is 1655394496.

It is a happy number.

6944935561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6445681225 + 499254336 = 80285^2 + 22344^2 .

It is a cyclic number.

It is not a de Polignac number, because 6944935561 - 2¹ = 6944935559 is a prime.

Together with 6944935559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6944935499 and 6944935508.

It is not a weakly prime, because it can be changed into another prime (6944735561) 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, 3472467780 + 3472467781.

It is an arithmetic number, because the mean of its divisors is an integer number (3472467781).

Almost surely, 2^6944935561 is an apocalyptic number.

It is an amenable number.

6944935561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6944935561 is an equidigital number, since it uses as much as digits as its factorization.

6944935561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 52.

The square root of 6944935561 is about 83336.2799805703. The cubic root of 6944935561 is about 1907.9020449113.

It can be divided in two parts, 6944935 and 561, that added together give a palindrome (6945496).

The spelling of 6944935561 in words is "six billion, nine hundred forty-four million, nine hundred thirty-five thousand, five hundred sixty-one".