12354835072843 has 4 divisors (see below), whose sum is σ = 12354871866480. Its totient is φ = 12354798279208.

The previous prime is 12354835072817. The next prime is 12354835072847. The reversal of 12354835072843 is 34827053845321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12354835072843 is a prime.

It is a super-2 number, since 2×12354835072843² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12354835072847) 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 3 ways as a sum of consecutive naturals, for example, 17888455 + ... + 18566272.

It is an arithmetic number, because the mean of its divisors is an integer number (3088717966620).

Almost surely, 2^{12354835072843} is an apocalyptic number.

12354835072843 is a deficient number, since it is larger than the sum of its proper divisors (36793637).

12354835072843 is an equidigital number, since it uses as much as digits as its factorization.

12354835072843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36793636.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 12354835072843 in words is "twelve trillion, three hundred fifty-four billion, eight hundred thirty-five million, seventy-two thousand, eight hundred forty-three".