12983843405 has 16 divisors (see below), whose sum is σ = 16945259184. Its totient is φ = 9493132800.

The previous prime is 12983843393. The next prime is 12983843407. The reversal of 12983843405 is 50434838921.

It can be written as a sum of positive squares in 8 ways, for example, as 569204164 + 12414639241 = 23858^2 + 111421^2 .

It is not a de Polignac number, because 12983843405 - 2²² = 12979649101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12983843405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12983843407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982304 + ... + 995433.

It is an arithmetic number, because the mean of its divisors is an integer number (1059078699).

Almost surely, 2^12983843405 is an apocalyptic number.

It is an amenable number.

12983843405 is a deficient number, since it is larger than the sum of its proper divisors (3961415779).

12983843405 is a wasteful number, since it uses less digits than its factorization.

12983843405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977856.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 12983843405 in words is "twelve billion, nine hundred eighty-three million, eight hundred forty-three thousand, four hundred five".