6777804388 has 12 divisors (see below), whose sum is σ = 12113523072. Its totient is φ = 3316797800.

The previous prime is 6777804377. The next prime is 6777804389. The reversal of 6777804388 is 8834087776.

It is not an unprimeable number, because it can be changed into a prime (6777804389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18025888 + ... + 18026263.

It is an arithmetic number, because the mean of its divisors is an integer number (1009460256).

Almost surely, 2^6777804388 is an apocalyptic number.

It is an amenable number.

6777804388 is a deficient number, since it is larger than the sum of its proper divisors (5335718684).

6777804388 is a wasteful number, since it uses less digits than its factorization.

6777804388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36052202 (or 36052200 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 58.

The square root of 6777804388 is about 82327.4218471586. The cubic root of 6777804388 is about 1892.4729336203.

The spelling of 6777804388 in words is "six billion, seven hundred seventy-seven million, eight hundred four thousand, three hundred eighty-eight".