6128866864 has 20 divisors (see below), whose sum is σ = 11877250720. Its totient is φ = 3063769920.

The previous prime is 6128866853. The next prime is 6128866907. The reversal of 6128866864 is 4686688216.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39529 + ... + 117559.

It is an arithmetic number, because the mean of its divisors is an integer number (593862536).

Almost surely, 2^6128866864 is an apocalyptic number.

It is an amenable number.

6128866864 is a deficient number, since it is larger than the sum of its proper divisors (5748383856).

6128866864 is a wasteful number, since it uses less digits than its factorization.

6128866864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82948 (or 82942 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The square root of 6128866864 is about 78287.0798024808. The cubic root of 6128866864 is about 1830.0378090469.

The spelling of 6128866864 in words is "six billion, one hundred twenty-eight million, eight hundred sixty-six thousand, eight hundred sixty-four".