8439384100923 has 12 divisors (see below), whose sum is σ = 12190259363568. Its totient is φ = 5626238582160.

The previous prime is 8439384100921. The next prime is 8439384100933. The reversal of 8439384100923 is 3290014839348.

8439384100923 is a `hidden beast` number, since 8 + 439 + 3 + 84 + 100 + 9 + 23 = 666.

It is not a de Polignac number, because 8439384100923 - 2¹ = 8439384100921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8439384100923.

It is not an unprimeable number, because it can be changed into a prime (8439384100921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2042013 + ... + 4587873.

It is an arithmetic number, because the mean of its divisors is an integer number (1015854946964).

Almost surely, 2^{8439384100923} is an apocalyptic number.

8439384100923 is a deficient number, since it is larger than the sum of its proper divisors (3750875262645).

8439384100923 is a wasteful number, since it uses less digits than its factorization.

8439384100923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914194 (or 2914191 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 8439384100923 in words is "eight trillion, four hundred thirty-nine billion, three hundred eighty-four million, one hundred thousand, nine hundred twenty-three".