8555430039139 has 4 divisors (see below), whose sum is σ = 8927405258256. Its totient is φ = 8183454820024.

The previous prime is 8555430039119. The next prime is 8555430039157. The reversal of 8555430039139 is 9319300345558.

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 8555430039139 - 2²⁵ = 8555396484707 is a prime.

It is a super-2 number, since 2×8555430039139² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8555430039139.

It is not an unprimeable number, because it can be changed into a prime (8555430039119) 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, 185987609524 + ... + 185987609569.

It is an arithmetic number, because the mean of its divisors is an integer number (2231851314564).

Almost surely, 2^{8555430039139} is an apocalyptic number.

8555430039139 is a deficient number, since it is larger than the sum of its proper divisors (371975219117).

8555430039139 is a wasteful number, since it uses less digits than its factorization.

8555430039139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371975219116.

The product of its (nonzero) digits is 8748000, while the sum is 55.

The spelling of 8555430039139 in words is "eight trillion, five hundred fifty-five billion, four hundred thirty million, thirty-nine thousand, one hundred thirty-nine".