3863969568 has 60 divisors (see below), whose sum is σ = 11363834790. Its totient is φ = 1287988992.

The previous prime is 3863969563. The next prime is 3863969569. The reversal of 3863969568 is 8659693683.

3863969568 is a `hidden beast` number, since 3 + 8 + 6 + 3 + 9 + 69 + 568 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3802942224 + 61027344 = 61668^2 + 7812^2 .

It is not an unprimeable number, because it can be changed into a prime (3863969563) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 742773 + ... + 747956.

Almost surely, 2^3863969568 is an apocalyptic number.

It is an amenable number.

3863969568 is an abundant number, since it is smaller than the sum of its proper divisors (7499865222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3863969568 is a wasteful number, since it uses less digits than its factorization.

3863969568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490751 (or 1490734 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The square root of 3863969568 is about 62160.8362878107. The cubic root of 3863969568 is about 1569.1985534509.

The spelling of 3863969568 in words is "three billion, eight hundred sixty-three million, nine hundred sixty-nine thousand, five hundred sixty-eight".