12346851439 has 4 divisors (see below), whose sum is σ = 13296609256. Its totient is φ = 11397093624.

The previous prime is 12346851437. The next prime is 12346851487. The reversal of 12346851439 is 93415864321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12346851439 - 2¹ = 12346851437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12346851437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474878889 + ... + 474878914.

It is an arithmetic number, because the mean of its divisors is an integer number (3324152314).

Almost surely, 2^12346851439 is an apocalyptic number.

12346851439 is a deficient number, since it is larger than the sum of its proper divisors (949757817).

12346851439 is an equidigital number, since it uses as much as digits as its factorization.

12346851439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949757816.

The product of its digits is 622080, while the sum is 46.

The spelling of 12346851439 in words is "twelve billion, three hundred forty-six million, eight hundred fifty-one thousand, four hundred thirty-nine".