39638483808 has 384 divisors, whose sum is σ = 137209282560. Its totient is φ = 9718272000.

The previous prime is 39638483803. The next prime is 39638483851. The reversal of 39638483808 is 80838483693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39638483803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9393123 + ... + 9397341.

It is an arithmetic number, because the mean of its divisors is an integer number (357315840).

Almost surely, 2^39638483808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39638483808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68604641280).

39638483808 is an abundant number, since it is smaller than the sum of its proper divisors (97570798752).

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

39638483808 is a wasteful number, since it uses less digits than its factorization.

39638483808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 39638483808 in words is "thirty-nine billion, six hundred thirty-eight million, four hundred eighty-three thousand, eight hundred eight".