39968448436 has 12 divisors (see below), whose sum is σ = 79936896928. Its totient is φ = 17129335032.

The previous prime is 39968448347. The next prime is 39968448437. The reversal of 39968448436 is 63484486993.

39968448436 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39968448437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713722266 + ... + 713722321.

Almost surely, 2^39968448436 is an apocalyptic number.

It is an amenable number.

39968448436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39968448436 is a wasteful number, since it uses less digits than its factorization.

39968448436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427444598 (or 1427444596 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 64.

The spelling of 39968448436 in words is "thirty-nine billion, nine hundred sixty-eight million, four hundred forty-eight thousand, four hundred thirty-six".