6779770880 has 96 divisors (see below), whose sum is σ = 16345929600. Its totient is φ = 2698838016.

The previous prime is 6779770853. The next prime is 6779770883. The reversal of 6779770880 is 880779776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6779770883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2282036 + ... + 2285004.

It is an arithmetic number, because the mean of its divisors is an integer number (170270100).

Almost surely, 2^6779770880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6779770880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8172964800).

6779770880 is an abundant number, since it is smaller than the sum of its proper divisors (9566158720).

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

6779770880 is a wasteful number, since it uses less digits than its factorization.

6779770880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 59.

The square root of 6779770880 is about 82339.3640976174. The cubic root of 6779770880 is about 1892.6559414112.

The spelling of 6779770880 in words is "six billion, seven hundred seventy-nine million, seven hundred seventy thousand, eight hundred eighty".