12884102109 has 20 divisors (see below), whose sum is σ = 19303774204. Its totient is φ = 8563895424.

The previous prime is 12884102089. The next prime is 12884102159. The reversal of 12884102109 is 90120148821.

It is a happy number.

12884102109 is a `hidden beast` number, since 1 + 28 + 8 + 410 + 210 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1858472100 + 11025630009 = 43110^2 + 105003^2 .

It is not a de Polignac number, because 12884102109 - 2⁹ = 12884101597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12884102159) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 208702 + ... + 263295.

Almost surely, 2^12884102109 is an apocalyptic number.

It is an amenable number.

12884102109 is a deficient number, since it is larger than the sum of its proper divisors (6419672095).

12884102109 is an equidigital number, since it uses as much as digits as its factorization.

12884102109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472346 (or 472337 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 12884102109 in words is "twelve billion, eight hundred eighty-four million, one hundred two thousand, one hundred nine".