6868666880 has 40 divisors (see below), whose sum is σ = 16468708212. Its totient is φ = 2747465728.

The previous prime is 6868666873. The next prime is 6868666969. The reversal of 6868666880 is 886668686.

It can be written as a sum of positive squares in 2 ways, for example, as 6469306624 + 399360256 = 80432^2 + 19984^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338977 + ... + 1344096.

Almost surely, 2^6868666880 is an apocalyptic number.

It is an amenable number.

6868666880 is an abundant number, since it is smaller than the sum of its proper divisors (9600041332).

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

6868666880 is an equidigital number, since it uses as much as digits as its factorization.

6868666880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683096 (or 2683080 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 62.

The square root of 6868666880 is about 82877.4208092892. The cubic root of 6868666880 is about 1900.8921830234.

The spelling of 6868666880 in words is "six billion, eight hundred sixty-eight million, six hundred sixty-six thousand, eight hundred eighty".