12342751865 has 4 divisors (see below), whose sum is σ = 14811302244. Its totient is φ = 9874201488.

The previous prime is 12342751831. The next prime is 12342751873. The reversal of 12342751865 is 56815724321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56815724321 = 21739 ⋅2613539.

It can be written as a sum of positive squares in 2 ways, for example, as 4720239616 + 7622512249 = 68704^2 + 87307^2 .

It is a cyclic number.

It is not a de Polignac number, because 12342751865 - 2¹⁰ = 12342750841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1234275182 + ... + 1234275191.

It is an arithmetic number, because the mean of its divisors is an integer number (3702825561).

Almost surely, 2^12342751865 is an apocalyptic number.

It is an amenable number.

12342751865 is a deficient number, since it is larger than the sum of its proper divisors (2468550379).

12342751865 is an equidigital number, since it uses as much as digits as its factorization.

12342751865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468550378.

The product of its digits is 403200, while the sum is 44.

The spelling of 12342751865 in words is "twelve billion, three hundred forty-two million, seven hundred fifty-one thousand, eight hundred sixty-five".