12628108064428 has 6 divisors (see below), whose sum is σ = 22099189112756. Its totient is φ = 6314054032212.

The previous prime is 12628108064413. The next prime is 12628108064437. The reversal of 12628108064428 is 82446080182621.

It is a happy number.

It is a super-2 number, since 2×12628108064428² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578513508050 + ... + 1578513508057.

Almost surely, 2^{12628108064428} is an apocalyptic number.

It is an amenable number.

12628108064428 is a deficient number, since it is larger than the sum of its proper divisors (9471081048328).

12628108064428 is a wasteful number, since it uses less digits than its factorization.

12628108064428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157027016111 (or 3157027016109 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 52.

The spelling of 12628108064428 in words is "twelve trillion, six hundred twenty-eight billion, one hundred eight million, sixty-four thousand, four hundred twenty-eight".