39078078109 has 16 divisors (see below), whose sum is σ = 47294496000. Its totient is φ = 31520680704.

The previous prime is 39078078103. The next prime is 39078078119. The reversal of 39078078109 is 90187087093.

It is a cyclic number.

It is not a de Polignac number, because 39078078109 - 2¹¹ = 39078076061 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 (39078078103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1004187 + ... + 1042375.

It is an arithmetic number, because the mean of its divisors is an integer number (2955906000).

Almost surely, 2^39078078109 is an apocalyptic number.

It is an amenable number.

39078078109 is a deficient number, since it is larger than the sum of its proper divisors (8216417891).

39078078109 is a wasteful number, since it uses less digits than its factorization.

39078078109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46812.

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 39078078109 in words is "thirty-nine billion, seventy-eight million, seventy-eight thousand, one hundred nine".