6778579444 has 36 divisors (see below), whose sum is σ = 14860737444. Its totient is φ = 2681634816.

The previous prime is 6778579429. The next prime is 6778579463. The reversal of 6778579444 is 4449758776.

It can be written as a sum of positive squares in 2 ways, for example, as 1614432400 + 5164147044 = 40180^2 + 71862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1327629 + ... + 1332724.

Almost surely, 2^6778579444 is an apocalyptic number.

It is an amenable number.

6778579444 is an abundant number, since it is smaller than the sum of its proper divisors (8082158000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6778579444 is a wasteful number, since it uses less digits than its factorization.

6778579444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660384 (or 2660375 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 61.

The square root of 6778579444 is about 82332.1288683828. The cubic root of 6778579444 is about 1892.5450669402.

The spelling of 6778579444 in words is "six billion, seven hundred seventy-eight million, five hundred seventy-nine thousand, four hundred forty-four".