8679556405399 has 24 divisors (see below), whose sum is σ = 9573763574144. Its totient is φ = 7862909630400.

The previous prime is 8679556405379. The next prime is 8679556405453. The reversal of 8679556405399 is 9935046559768.

It is not a de Polignac number, because 8679556405399 - 2²⁷ = 8679422187671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8679556405309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39625609 + ... + 39844045.

Almost surely, 2^{8679556405399} is an apocalyptic number.

8679556405399 is a deficient number, since it is larger than the sum of its proper divisors (894207168745).

8679556405399 is a wasteful number, since it uses less digits than its factorization.

8679556405399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219607 (or 219596 counting only the distinct ones).

The product of its (nonzero) digits is 2204496000, while the sum is 76.

The spelling of 8679556405399 in words is "eight trillion, six hundred seventy-nine billion, five hundred fifty-six million, four hundred five thousand, three hundred ninety-nine".