6881888256 has 96 divisors (see below), whose sum is σ = 18382684320. Its totient is φ = 2289532928.

The previous prime is 6881888227. The next prime is 6881888309. The reversal of 6881888256 is 6528881886.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 6881888256.

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, 5264755 + ... + 5266061.

It is an arithmetic number, because the mean of its divisors is an integer number (191486295).

Almost surely, 2^6881888256 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 6881888256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9191342160).

6881888256 is an abundant number, since it is smaller than the sum of its proper divisors (11500796064).

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

6881888256 is a wasteful number, since it uses less digits than its factorization.

6881888256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2169 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 60.

The square root of 6881888256 is about 82957.1471062018. The cubic root of 6881888256 is about 1902.1110659257. Note that the first 3 decimals are identical.

The spelling of 6881888256 in words is "six billion, eight hundred eighty-one million, eight hundred eighty-eight thousand, two hundred fifty-six".