12543286847 has 16 divisors (see below), whose sum is σ = 15475682880. Its totient is φ = 9900064512.

The previous prime is 12543286843. The next prime is 12543286853. The reversal of 12543286847 is 74868234521.

It is not a de Polignac number, because 12543286847 - 2² = 12543286843 is a prime.

It is a super-2 number, since 2×12543286847² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12543286795 and 12543286804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543286843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131288 + ... + 205725.

It is an arithmetic number, because the mean of its divisors is an integer number (967230180).

Almost surely, 2^12543286847 is an apocalyptic number.

12543286847 is a deficient number, since it is larger than the sum of its proper divisors (2932396033).

12543286847 is a wasteful number, since it uses less digits than its factorization.

12543286847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337442.

The product of its digits is 2580480, while the sum is 50.

The spelling of 12543286847 in words is "twelve billion, five hundred forty-three million, two hundred eighty-six thousand, eight hundred forty-seven".