3869768648 has 8 divisors (see below), whose sum is σ = 7255816230. Its totient is φ = 1934884320.

The previous prime is 3869768629. The next prime is 3869768663. The reversal of 3869768648 is 8468679683.

It can be written as a sum of positive squares in only one way, i.e., 2762343364 + 1107425284 = 52558^2 + 33278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241860533 + ... + 241860548.

Almost surely, 2^3869768648 is an apocalyptic number.

It is an amenable number.

3869768648 is a deficient number, since it is larger than the sum of its proper divisors (3386047582).

3869768648 is a wasteful number, since it uses less digits than its factorization.

3869768648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483721087 (or 483721083 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 65.

The square root of 3869768648 is about 62207.4645681690. The cubic root of 3869768648 is about 1569.9831834514.

The spelling of 3869768648 in words is "three billion, eight hundred sixty-nine million, seven hundred sixty-eight thousand, six hundred forty-eight".