38532512209 has 9 divisors (see below), whose sum is σ = 39082119633. Its totient is φ = 37990536192.

The previous prime is 38532512189. The next prime is 38532512279. The reversal of 38532512209 is 90221523583.

It is a happy number.

The square root of 38532512209 is 196297.

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 9724918225 + 28807593984 = 98615^2 + 169728^2 .

It is not a de Polignac number, because 38532512209 - 2³⁵ = 4172773841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38532512279) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14328337 + ... + 14331025.

It is an arithmetic number, because the mean of its divisors is an integer number (4342457737).

Almost surely, 2^38532512209 is an apocalyptic number.

38532512209 is the 196297-th square number.

38532512209 is the 98149-th centered octagonal number.

It is an amenable number.

38532512209 is a deficient number, since it is larger than the sum of its proper divisors (549607424).

38532512209 is an frugal number, since it uses more digits than its factorization.

38532512209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524 (or 2762 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 38532512209 in words is "thirty-eight billion, five hundred thirty-two million, five hundred twelve thousand, two hundred nine".