4068944779 has 4 divisors (see below), whose sum is σ = 4145717376. Its totient is φ = 3992172184.

The previous prime is 4068944777. The next prime is 4068944807. The reversal of 4068944779 is 9774498604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4068944779 - 2¹ = 4068944777 is a prime.

It is a super-2 number, since 2×4068944779² = 33112623229102717682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4068944777) 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 in 3 ways as a sum of consecutive naturals, for example, 38386219 + ... + 38386324.

It is an arithmetic number, because the mean of its divisors is an integer number (1036429344).

Almost surely, 2^4068944779 is an apocalyptic number.

4068944779 is a deficient number, since it is larger than the sum of its proper divisors (76772597).

4068944779 is an equidigital number, since it uses as much as digits as its factorization.

4068944779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76772596.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The square root of 4068944779 is about 63788.2808907718. The cubic root of 4068944779 is about 1596.4693997848.

The spelling of 4068944779 in words is "four billion, sixty-eight million, nine hundred forty-four thousand, seven hundred seventy-nine".