12543154843 has 8 divisors (see below), whose sum is σ = 12565735200. Its totient is φ = 12520592448.

The previous prime is 12543154787. The next prime is 12543154859. The reversal of 12543154843 is 34845134521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12543154843 - 2¹⁷ = 12543023771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12543154796 and 12543154805.

It is not an unprimeable number, because it can be changed into a prime (12543154243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2563143 + ... + 2568031.

It is an arithmetic number, because the mean of its divisors is an integer number (1570716900).

Almost surely, 2^12543154843 is an apocalyptic number.

12543154843 is a deficient number, since it is larger than the sum of its proper divisors (22580357).

12543154843 is an equidigital number, since it uses as much as digits as its factorization.

12543154843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981.

The product of its digits is 230400, while the sum is 40.

The spelling of 12543154843 in words is "twelve billion, five hundred forty-three million, one hundred fifty-four thousand, eight hundred forty-three".