12469884136 has 8 divisors (see below), whose sum is σ = 23381032770. Its totient is φ = 6234942064.

The previous prime is 12469884131. The next prime is 12469884139. The reversal of 12469884136 is 63148896421.

12469884136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9998800036 + 2471084100 = 99994^2 + 49710^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12469884131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 779367751 + ... + 779367766.

Almost surely, 2^12469884136 is an apocalyptic number.

It is an amenable number.

12469884136 is a deficient number, since it is larger than the sum of its proper divisors (10911148634).

12469884136 is a wasteful number, since it uses less digits than its factorization.

12469884136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558735523 (or 1558735519 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The spelling of 12469884136 in words is "twelve billion, four hundred sixty-nine million, eight hundred eighty-four thousand, one hundred thirty-six".