6944158918573 has 2 divisors, whose sum is σ = 6944158918574. Its totient is φ = 6944158918572.

The previous prime is 6944158918507. The next prime is 6944158918621. The reversal of 6944158918573 is 3758198514496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6649704004804 + 294454913769 = 2578702^2 + 542637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6944158918573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6944158912573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472079459286 + 3472079459287.

It is an arithmetic number, because the mean of its divisors is an integer number (3472079459287).

Almost surely, 2^{6944158918573} is an apocalyptic number.

It is an amenable number.

6944158918573 is a deficient number, since it is larger than the sum of its proper divisors (1).

6944158918573 is an equidigital number, since it uses as much as digits as its factorization.

6944158918573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 70.

The spelling of 6944158918573 in words is "six trillion, nine hundred forty-four billion, one hundred fifty-eight million, nine hundred eighteen thousand, five hundred seventy-three".