12347812743 has 16 divisors (see below), whose sum is σ = 18818138880. Its totient is φ = 7054983936.

The previous prime is 12347812721. The next prime is 12347812751. The reversal of 12347812743 is 34721874321.

It is not a de Polignac number, because 12347812743 - 2⁹ = 12347812231 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12347812695 and 12347812704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12347812843) 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 in 15 ways as a sum of consecutive naturals, for example, 150871 + ... + 217847.

It is an arithmetic number, because the mean of its divisors is an integer number (1176133680).

Almost surely, 2^12347812743 is an apocalyptic number.

12347812743 is a deficient number, since it is larger than the sum of its proper divisors (6470326137).

12347812743 is an equidigital number, since it uses as much as digits as its factorization.

12347812743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75766.

The product of its digits is 225792, while the sum is 42.

The spelling of 12347812743 in words is "twelve billion, three hundred forty-seven million, eight hundred twelve thousand, seven hundred forty-three".