39139868689 has 8 divisors (see below), whose sum is σ = 41941519200. Its totient is φ = 36393696576.

The previous prime is 39139868641. The next prime is 39139868711. The reversal of 39139868689 is 98686893193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39139868689 - 2¹¹ = 39139866641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39139868189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13868139 + ... + 13870960.

It is an arithmetic number, because the mean of its divisors is an integer number (5242689900).

Almost surely, 2^39139868689 is an apocalyptic number.

It is an amenable number.

39139868689 is a deficient number, since it is larger than the sum of its proper divisors (2801650511).

39139868689 is a wasteful number, since it uses less digits than its factorization.

39139868689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27739199.

The product of its digits is 120932352, while the sum is 70.

The spelling of 39139868689 in words is "thirty-nine billion, one hundred thirty-nine million, eight hundred sixty-eight thousand, six hundred eighty-nine".