38851169449 has 9 divisors (see below), whose sum is σ = 39608691703. Its totient is φ = 38107878952.

The previous prime is 38851169389. The next prime is 38851169501. The reversal of 38851169449 is 94496115883.

The square root of 38851169449 is 197107.

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

38851169449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28007696025 + 10843473424 = 167355^2 + 104132^2 .

It is not a de Polignac number, because 38851169449 - 2¹⁷ = 38851038377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38851169393 and 38851169402.

It is not an unprimeable number, because it can be changed into a prime (38851169549) 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, 10444812 + ... + 10448530.

Almost surely, 2^38851169449 is an apocalyptic number.

38851169449 is the 197107-th square number.

38851169449 is the 98554-th centered octagonal number.

It is an amenable number.

38851169449 is a deficient number, since it is larger than the sum of its proper divisors (757522254).

38851169449 is an frugal number, since it uses more digits than its factorization.

38851169449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544 (or 3772 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The spelling of 38851169449 in words is "thirty-eight billion, eight hundred fifty-one million, one hundred sixty-nine thousand, four hundred forty-nine".