8539418479231 has 4 divisors (see below), whose sum is σ = 8539430456200. Its totient is φ = 8539406502264.

The previous prime is 8539418479211. The next prime is 8539418479303. The reversal of 8539418479231 is 1329748149358.

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

It is a cyclic number.

It is not a de Polignac number, because 8539418479231 - 2⁹ = 8539418478719 is a prime.

It is a super-2 number, since 2×8539418479231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8539418479211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4846401 + ... + 6369178.

It is an arithmetic number, because the mean of its divisors is an integer number (2134857614050).

Almost surely, 2^{8539418479231} is an apocalyptic number.

8539418479231 is a deficient number, since it is larger than the sum of its proper divisors (11976969).

8539418479231 is a wasteful number, since it uses less digits than its factorization.

8539418479231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11976968.

The product of its digits is 52254720, while the sum is 64.

The spelling of 8539418479231 in words is "eight trillion, five hundred thirty-nine billion, four hundred eighteen million, four hundred seventy-nine thousand, two hundred thirty-one".