38393659249 has 27 divisors (see below), whose sum is σ = 43232367801. Its totient is φ = 34070568840.

The previous prime is 38393659237. The next prime is 38393659267. The reversal of 38393659249 is 94295639383.

The square root of 38393659249 is 195943.

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

It is not a de Polignac number, because 38393659249 - 2¹⁹ = 38393134961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38393659849) 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 26 ways as a sum of consecutive naturals, for example, 101302342 + ... + 101302720.

Almost surely, 2^38393659249 is an apocalyptic number.

38393659249 is the 195943-rd square number.

38393659249 is the 97972-nd centered octagonal number.

It is an amenable number.

38393659249 is a deficient number, since it is larger than the sum of its proper divisors (4838708552).

38393659249 is an frugal number, since it uses more digits than its factorization.

38393659249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 437 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 61.

The spelling of 38393659249 in words is "thirty-eight billion, three hundred ninety-three million, six hundred fifty-nine thousand, two hundred forty-nine".