39936067909 has 8 divisors (see below), whose sum is σ = 42098816480. Its totient is φ = 37779404400.

The previous prime is 39936067901. The next prime is 39936067937. The reversal of 39936067909 is 90976063993.

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

It is a cyclic number.

It is not a de Polignac number, because 39936067909 - 2³ = 39936067901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39936067901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507782 + ... + 1534039.

It is an arithmetic number, because the mean of its divisors is an integer number (5262352060).

Almost surely, 2^39936067909 is an apocalyptic number.

It is an amenable number.

39936067909 is a deficient number, since it is larger than the sum of its proper divisors (2162748571).

39936067909 is a wasteful number, since it uses less digits than its factorization.

39936067909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042531.

The product of its (nonzero) digits is 14880348, while the sum is 61.

The spelling of 39936067909 in words is "thirty-nine billion, nine hundred thirty-six million, sixty-seven thousand, nine hundred nine".