6866638448 has 40 divisors (see below), whose sum is σ = 13574854368. Its totient is φ = 3363639552.

The previous prime is 6866638433. The next prime is 6866638469. The reversal of 6866638448 is 8448366686.

It is a congruent number.

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, 616061 + ... + 627107.

Almost surely, 2^6866638448 is an apocalyptic number.

It is an amenable number.

6866638448 is a deficient number, since it is larger than the sum of its proper divisors (6708215920).

6866638448 is a wasteful number, since it uses less digits than its factorization.

6866638448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11841 (or 11835 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 59.

The square root of 6866638448 is about 82865.1823626787. The cubic root of 6866638448 is about 1900.7050428682.

The spelling of 6866638448 in words is "six billion, eight hundred sixty-six million, six hundred thirty-eight thousand, four hundred forty-eight".