8538461538547 has 4 divisors (see below), whose sum is σ = 8538470883856. Its totient is φ = 8538452193240.

The previous prime is 8538461538517. The next prime is 8538461538571. The reversal of 8538461538547 is 7458351648358.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8538461538547 - 2⁷ = 8538461538419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8538461538517) 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, 3133068 + ... + 5185849.

It is an arithmetic number, because the mean of its divisors is an integer number (2134617720964).

Almost surely, 2^{8538461538547} is an apocalyptic number.

8538461538547 is a deficient number, since it is larger than the sum of its proper divisors (9345309).

8538461538547 is a wasteful number, since it uses less digits than its factorization.

8538461538547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345308.

The product of its digits is 387072000, while the sum is 67.

The spelling of 8538461538547 in words is "eight trillion, five hundred thirty-eight billion, four hundred sixty-one million, five hundred thirty-eight thousand, five hundred forty-seven".