8427821231041 has 3 divisors (see below), whose sum is σ = 8427824134113. Its totient is φ = 8427818327970.

The previous prime is 8427821230979. The next prime is 8427821231077. The reversal of 8427821231041 is 1401321287248.

The square root of 8427821231041 is 2903071.

It is a perfect power (a square), and thus also a powerful number.

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 not a de Polignac number, because 8427821231041 - 2³³ = 8419231296449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8427821831041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1451536 + ... + 4354606.

It is an arithmetic number, because the mean of its divisors is an integer number (2809274711371).

Almost surely, 2^{8427821231041} is an apocalyptic number.

8427821231041 is the 2903071-st square number.

8427821231041 is the 1451536-th centered octagonal number.

It is an amenable number.

8427821231041 is a deficient number, since it is larger than the sum of its proper divisors (2903072).

8427821231041 is an frugal number, since it uses more digits than its factorization.

8427821231041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806142 (or 2903071 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 8427821231041 in words is "eight trillion, four hundred twenty-seven billion, eight hundred twenty-one million, two hundred thirty-one thousand, forty-one".