12683783956 has 6 divisors (see below), whose sum is σ = 22196621930. Its totient is φ = 6341891976.

The previous prime is 12683783947. The next prime is 12683783977. The reversal of 12683783956 is 65938738621.

It can be written as a sum of positive squares in only one way, i.e., 8522243856 + 4161540100 = 92316^2 + 64510^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12683783956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585472991 + ... + 1585472998.

Almost surely, 2^12683783956 is an apocalyptic number.

It is an amenable number.

12683783956 is a deficient number, since it is larger than the sum of its proper divisors (9512837974).

12683783956 is a wasteful number, since it uses less digits than its factorization.

12683783956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170945993 (or 3170945991 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The spelling of 12683783956 in words is "twelve billion, six hundred eighty-three million, seven hundred eighty-three thousand, nine hundred fifty-six".