12783147847 has 2 divisors, whose sum is σ = 12783147848. Its totient is φ = 12783147846.

The previous prime is 12783147827. The next prime is 12783147877. The reversal of 12783147847 is 74874138721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12783147847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12783147794 and 12783147803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12783147827) 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, 6391573923 + 6391573924.

It is an arithmetic number, because the mean of its divisors is an integer number (6391573924).

Almost surely, 2^12783147847 is an apocalyptic number.

12783147847 is a deficient number, since it is larger than the sum of its proper divisors (1).

12783147847 is an equidigital number, since it uses as much as digits as its factorization.

12783147847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2107392, while the sum is 52.

The spelling of 12783147847 in words is "twelve billion, seven hundred eighty-three million, one hundred forty-seven thousand, eight hundred forty-seven".