3858581648 has 10 divisors (see below), whose sum is σ = 7476001974. Its totient is φ = 1929290816.

The previous prime is 3858581641. The next prime is 3858581663. The reversal of 3858581648 is 8461858583.

It is a happy number.

3858581648 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., 2835349504 + 1023232144 = 53248^2 + 31988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3858581593 and 3858581602.

It is not an unprimeable number, because it can be changed into a prime (3858581641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120580661 + ... + 120580692.

Almost surely, 2^3858581648 is an apocalyptic number.

It is an amenable number.

3858581648 is a deficient number, since it is larger than the sum of its proper divisors (3617420326).

3858581648 is a wasteful number, since it uses less digits than its factorization.

3858581648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241161361 (or 241161355 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 56.

The square root of 3858581648 is about 62117.4826276790. The cubic root of 3858581648 is about 1568.4688505792.

The spelling of 3858581648 in words is "three billion, eight hundred fifty-eight million, five hundred eighty-one thousand, six hundred forty-eight".