12648006828 has 18 divisors (see below), whose sum is σ = 31971350684. Its totient is φ = 4216002264.

The previous prime is 12648006809. The next prime is 12648006829. The reversal of 12648006828 is 82860084621.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12648006828² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12648006829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175666726 + ... + 175666797.

Almost surely, 2^12648006828 is an apocalyptic number.

12648006828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12648006828 is an abundant number, since it is smaller than the sum of its proper divisors (19323343856).

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

12648006828 is a wasteful number, since it uses less digits than its factorization.

12648006828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351333533 (or 351333528 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 12648006828 in words is "twelve billion, six hundred forty-eight million, six thousand, eight hundred twenty-eight".