8678539231 has 4 divisors (see below), whose sum is σ = 8764465464. Its totient is φ = 8592613000.

The previous prime is 8678539211. The next prime is 8678539271. The reversal of 8678539231 is 1329358768.

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 8678539231 - 2²¹ = 8676442079 is a prime.

It is a super-2 number, since 2×8678539231² (a number of 21 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 (8678539211) 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, 42962965 + ... + 42963166.

It is an arithmetic number, because the mean of its divisors is an integer number (2191116366).

Almost surely, 2^8678539231 is an apocalyptic number.

8678539231 is a deficient number, since it is larger than the sum of its proper divisors (85926233).

8678539231 is a wasteful number, since it uses less digits than its factorization.

8678539231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85926232.

The product of its digits is 2177280, while the sum is 52.

The square root of 8678539231 is about 93158.6777010065. The cubic root of 8678539231 is about 2055.0175903996.

The spelling of 8678539231 in words is "eight billion, six hundred seventy-eight million, five hundred thirty-nine thousand, two hundred thirty-one".