38450895921 has 27 divisors (see below), whose sum is σ = 56022717387. Its totient is φ = 25413134400.

The previous prime is 38450895893. The next prime is 38450895941. The reversal of 38450895921 is 12959805483.

The square root of 38450895921 is 196089.

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

38450895921 is a `hidden beast` number, since 3 + 8 + 45 + 0 + 8 + 9 + 592 + 1 = 666.

38450895921 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., 38068302321 + 382593600 = 195111^2 + 19560^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38450895921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38450895941) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 95887321 + ... + 95887721.

Almost surely, 2^38450895921 is an apocalyptic number.

38450895921 is the 196089-th square number.

38450895921 is the 98045-th centered octagonal number.

It is an amenable number.

38450895921 is a deficient number, since it is larger than the sum of its proper divisors (17571821466).

38450895921 is an frugal number, since it uses more digits than its factorization.

38450895921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 38450895921 in words is "thirty-eight billion, four hundred fifty million, eight hundred ninety-five thousand, nine hundred twenty-one".