8439940358219 has 4 divisors (see below), whose sum is σ = 8645792562120. Its totient is φ = 8234088154320.

The previous prime is 8439940358203. The next prime is 8439940358371. The reversal of 8439940358219 is 9128530499348.

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 8439940358219 - 2⁴ = 8439940358203 is a prime.

It is a super-2 number, since 2×8439940358219² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8439940358119) 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, 102926101889 + ... + 102926101970.

It is an arithmetic number, because the mean of its divisors is an integer number (2161448140530).

Almost surely, 2^{8439940358219} is an apocalyptic number.

8439940358219 is a deficient number, since it is larger than the sum of its proper divisors (205852203901).

8439940358219 is a wasteful number, since it uses less digits than its factorization.

8439940358219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205852203900.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 8439940358219 in words is "eight trillion, four hundred thirty-nine billion, nine hundred forty million, three hundred fifty-eight thousand, two hundred nineteen".