12649405343 has 2 divisors, whose sum is σ = 12649405344. Its totient is φ = 12649405342.

The previous prime is 12649405253. The next prime is 12649405367. The reversal of 12649405343 is 34350494621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12649405343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12649405343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12649401343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324702671 + 6324702672.

It is an arithmetic number, because the mean of its divisors is an integer number (6324702672).

Almost surely, 2^12649405343 is an apocalyptic number.

12649405343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12649405343 is an equidigital number, since it uses as much as digits as its factorization.

12649405343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 12649405343 its reverse (34350494621), we get a palindrome (46999899964).

The spelling of 12649405343 in words is "twelve billion, six hundred forty-nine million, four hundred five thousand, three hundred forty-three".