38339989636 has 81 divisors (see below), whose sum is σ = 77352866031. Its totient is φ = 16616880384.

The previous prime is 38339989579. The next prime is 38339989673. The reversal of 38339989636 is 63698993383.

The square root of 38339989636 is 195806.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 346183236 + 37993806400 = 18606^2 + 194920^2 .

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 86546031 + ... + 86546473.

Almost surely, 2^38339989636 is an apocalyptic number.

38339989636 is the 195806-th square number.

It is an amenable number.

38339989636 is an abundant number, since it is smaller than the sum of its proper divisors (39012876395).

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

38339989636 is a wasteful number, since it uses less digits than its factorization.

38339989636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 475 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 67.

The spelling of 38339989636 in words is "thirty-eight billion, three hundred thirty-nine million, nine hundred eighty-nine thousand, six hundred thirty-six".