39804604109 has 4 divisors (see below), whose sum is σ = 39844771200. Its totient is φ = 39764437020.

The previous prime is 39804604087. The next prime is 39804604111. The reversal of 39804604109 is 90140640893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39804604109 - 2¹² = 39804600013 is a prime.

It is a super-3 number, since 3×39804604109³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39804604109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39804600109) 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, 20082059 + ... + 20084040.

It is an arithmetic number, because the mean of its divisors is an integer number (9961192800).

Almost surely, 2^39804604109 is an apocalyptic number.

It is an amenable number.

39804604109 is a deficient number, since it is larger than the sum of its proper divisors (40167091).

39804604109 is an equidigital number, since it uses as much as digits as its factorization.

39804604109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40167090.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 39804604109 in words is "thirty-nine billion, eight hundred four million, six hundred four thousand, one hundred nine".