6771695880 has 128 divisors (see below), whose sum is σ = 21366374400. Its totient is φ = 1713583872.

The previous prime is 6771695873. The next prime is 6771695881. The reversal of 6771695880 is 885961776.

It is a self number, because there is not a number n which added to its sum of digits gives 6771695880.

It is not an unprimeable number, because it can be changed into a prime (6771695881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340861 + ... + 360179.

It is an arithmetic number, because the mean of its divisors is an integer number (166924800).

Almost surely, 2^6771695880 is an apocalyptic number.

6771695880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6771695880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10683187200).

6771695880 is an abundant number, since it is smaller than the sum of its proper divisors (14594678520).

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

6771695880 is a wasteful number, since it uses less digits than its factorization.

6771695880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19483 (or 19479 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 6771695880 is about 82290.3146184288. The cubic root of 6771695880 is about 1891.9042312298.

The spelling of 6771695880 in words is "six billion, seven hundred seventy-one million, six hundred ninety-five thousand, eight hundred eighty".