860000666828 has 12 divisors (see below), whose sum is σ = 1533397415760. Its totient is φ = 421887119472.

The previous prime is 860000666761. The next prime is 860000666951. The reversal of 860000666828 is 828666000068.

It is a super-2 number, since 2×860000666828² (a number of 25 digits) contains 22 as substring.

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, 2028303248 + ... + 2028303671.

It is an arithmetic number, because the mean of its divisors is an integer number (127783117980).

Almost surely, 2^860000666828 is an apocalyptic number.

It is an amenable number.

860000666828 is a deficient number, since it is larger than the sum of its proper divisors (673396748932).

860000666828 is a wasteful number, since it uses less digits than its factorization.

860000666828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056606976 (or 4056606974 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 860000666828 in words is "eight hundred sixty billion, six hundred sixty-six thousand, eight hundred twenty-eight".