6777344378 has 16 divisors (see below), whose sum is σ = 11619363840. Its totient is φ = 2904311376.

The previous prime is 6777344293. The next prime is 6777344411. The reversal of 6777344378 is 8734437776.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273575 + ... + 297317.

It is an arithmetic number, because the mean of its divisors is an integer number (726210240).

Almost surely, 2^6777344378 is an apocalyptic number.

6777344378 is a deficient number, since it is larger than the sum of its proper divisors (4842019462).

6777344378 is a wasteful number, since it uses less digits than its factorization.

6777344378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44141.

The product of its digits is 16595712, while the sum is 56.

The square root of 6777344378 is about 82324.6280161654. The cubic root of 6777344378 is about 1892.4301185669.

The spelling of 6777344378 in words is "six billion, seven hundred seventy-seven million, three hundred forty-four thousand, three hundred seventy-eight".