12839569430538 has 32 divisors (see below), whose sum is σ = 25883878293504. Its totient is φ = 4245739857072.

The previous prime is 12839569430521. The next prime is 12839569430539. The reversal of 12839569430538 is 83503496593821.

It is not an unprimeable number, because it can be changed into a prime (12839569430539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6986031 + ... + 8630397.

It is an arithmetic number, because the mean of its divisors is an integer number (808871196672).

Almost surely, 2^{12839569430538} is an apocalyptic number.

12839569430538 is an abundant number, since it is smaller than the sum of its proper divisors (13044308862966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12839569430538 is a wasteful number, since it uses less digits than its factorization.

12839569430538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654746.

The product of its (nonzero) digits is 167961600, while the sum is 66.

The spelling of 12839569430538 in words is "twelve trillion, eight hundred thirty-nine billion, five hundred sixty-nine million, four hundred thirty thousand, five hundred thirty-eight".