39668128396 has 12 divisors (see below), whose sum is σ = 74759165152. Its totient is φ = 18308366928.

The previous prime is 39668128393. The next prime is 39668128411. The reversal of 39668128396 is 69382186693.

39668128396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39668128393) 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, 381424260 + ... + 381424363.

Almost surely, 2^39668128396 is an apocalyptic number.

It is an amenable number.

39668128396 is a deficient number, since it is larger than the sum of its proper divisors (35091036756).

39668128396 is a wasteful number, since it uses less digits than its factorization.

39668128396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762848640 (or 762848638 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 61.

The spelling of 39668128396 in words is "thirty-nine billion, six hundred sixty-eight million, one hundred twenty-eight thousand, three hundred ninety-six".