12706628028 has 24 divisors (see below), whose sum is σ = 29651094480. Its totient is φ = 4235214720.

The previous prime is 12706628027. The next prime is 12706628059. The reversal of 12706628028 is 82082660721.

It is a happy number.

It is a super-3 number, since 3×12706628028³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12706628027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159768 + ... + 225696.

It is an arithmetic number, because the mean of its divisors is an integer number (1235462270).

Almost surely, 2^12706628028 is an apocalyptic number.

It is an amenable number.

12706628028 is an abundant number, since it is smaller than the sum of its proper divisors (16944466452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12706628028 is a wasteful number, since it uses less digits than its factorization.

12706628028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81997 (or 81995 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 12706628028 in words is "twelve billion, seven hundred six million, six hundred twenty-eight thousand, twenty-eight".