12926783761 has 2 divisors, whose sum is σ = 12926783762. Its totient is φ = 12926783760.

The previous prime is 12926783743. The next prime is 12926783819. The reversal of 12926783761 is 16738762921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11695124736 + 1231659025 = 108144^2 + 35095^2 .

It is a cyclic number.

It is not a de Polignac number, because 12926783761 - 2¹⁷ = 12926652689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12926783699 and 12926783708.

It is not a weakly prime, because it can be changed into another prime (12926783461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6463391880 + 6463391881.

It is an arithmetic number, because the mean of its divisors is an integer number (6463391881).

Almost surely, 2^12926783761 is an apocalyptic number.

It is an amenable number.

12926783761 is a deficient number, since it is larger than the sum of its proper divisors (1).

12926783761 is an equidigital number, since it uses as much as digits as its factorization.

12926783761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The spelling of 12926783761 in words is "twelve billion, nine hundred twenty-six million, seven hundred eighty-three thousand, seven hundred sixty-one".