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12680679943 is a prime number
BaseRepresentation
bin10111100111101001…
…11101001000000111
31012201201221021200201
423303310331020013
5201432223224233
65454142551331
7626145000241
oct136364751007
935651837621
1012680679943
115417a05588
12255a898547
13127119b119
148841a7091
154e33c877d
hex2f3d3d207

12680679943 has 2 divisors, whose sum is σ = 12680679944. Its totient is φ = 12680679942.

The previous prime is 12680679941. The next prime is 12680679959. The reversal of 12680679943 is 34997608621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12680679943 - 21 = 12680679941 is a prime.

Together with 12680679941, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12680679941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340339971 + 6340339972.

It is an arithmetic number, because the mean of its divisors is an integer number (6340339972).

Almost surely, 212680679943 is an apocalyptic number.

12680679943 is a deficient number, since it is larger than the sum of its proper divisors (1).

12680679943 is an equidigital number, since it uses as much as digits as its factorization.

12680679943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 12680679943 in words is "twelve billion, six hundred eighty million, six hundred seventy-nine thousand, nine hundred forty-three".