39039696906 has 64 divisors (see below), whose sum is σ = 90778060800. Its totient is φ = 10962141120.

The previous prime is 39039696901. The next prime is 39039696907. The reversal of 39039696906 is 60969693093.

It is a self number, because there is not a number n which added to its sum of digits gives 39039696906.

It is not an unprimeable number, because it can be changed into a prime (39039696901) 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 31 ways as a sum of consecutive naturals, for example, 924645 + ... + 965943.

It is an arithmetic number, because the mean of its divisors is an integer number (1418407200).

Almost surely, 2^39039696906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39039696906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45389030400).

39039696906 is an abundant number, since it is smaller than the sum of its proper divisors (51738363894).

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

39039696906 is a wasteful number, since it uses less digits than its factorization.

39039696906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41699.

The product of its (nonzero) digits is 12754584, while the sum is 60.

The spelling of 39039696906 in words is "thirty-nine billion, thirty-nine million, six hundred ninety-six thousand, nine hundred six".