6778903922 has 18 divisors (see below), whose sum is σ = 11829917997. Its totient is φ = 2904895224.

The previous prime is 6778903921. The next prime is 6778903931. The reversal of 6778903922 is 2293098776.

It can be written as a sum of positive squares in 2 ways, for example, as 4271798881 + 2507105041 = 65359^2 + 50071^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=58219.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6778903921) 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 8 ways as a sum of consecutive naturals, for example, 810908 + ... + 819224.

Almost surely, 2^6778903922 is an apocalyptic number.

6778903922 is a deficient number, since it is larger than the sum of its proper divisors (5051014075).

6778903922 is an frugal number, since it uses more digits than its factorization.

6778903922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16650 (or 8326 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 6778903922 is about 82334.0993877992. The cubic root of 6778903922 is about 1892.5752639967.

The spelling of 6778903922 in words is "six billion, seven hundred seventy-eight million, nine hundred three thousand, nine hundred twenty-two".