6678889445612 has 12 divisors (see below), whose sum is σ = 11705321019840. Its totient is φ = 3334512011376.

The previous prime is 6678889445551. The next prime is 6678889445621. The reversal of 6678889445612 is 2165449888766.

It is a self number, because there is not a number n which added to its sum of digits gives 6678889445612.

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, 1233174812 + ... + 1233180227.

It is an arithmetic number, because the mean of its divisors is an integer number (975443418320).

Almost surely, 2^{6678889445612} is an apocalyptic number.

It is an amenable number.

6678889445612 is a deficient number, since it is larger than the sum of its proper divisors (5026431574228).

6678889445612 is a wasteful number, since it uses less digits than its factorization.

6678889445612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466355720 (or 2466355718 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 74.

The spelling of 6678889445612 in words is "six trillion, six hundred seventy-eight billion, eight hundred eighty-nine million, four hundred forty-five thousand, six hundred twelve".