12684527396 has 6 divisors (see below), whose sum is σ = 22197922950. Its totient is φ = 6342263696.

The previous prime is 12684527389. The next prime is 12684527423. The reversal of 12684527396 is 69372548621.

It can be written as a sum of positive squares in only one way, i.e., 11250844900 + 1433682496 = 106070^2 + 37864^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585565921 + ... + 1585565928.

It is an arithmetic number, because the mean of its divisors is an integer number (3699653825).

Almost surely, 2^12684527396 is an apocalyptic number.

It is an amenable number.

12684527396 is a deficient number, since it is larger than the sum of its proper divisors (9513395554).

12684527396 is a wasteful number, since it uses less digits than its factorization.

12684527396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171131853 (or 3171131851 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The spelling of 12684527396 in words is "twelve billion, six hundred eighty-four million, five hundred twenty-seven thousand, three hundred ninety-six".