3863236864 has 72 divisors (see below), whose sum is σ = 8379418880. Its totient is φ = 1770854400.

The previous prime is 3863236843. The next prime is 3863236967. The reversal of 3863236864 is 4686323683.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137974 + ... + 163594.

Almost surely, 2^3863236864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3863236864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4189709440).

3863236864 is an abundant number, since it is smaller than the sum of its proper divisors (4516182016).

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

3863236864 is a wasteful number, since it uses less digits than its factorization.

3863236864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25687 (or 25673 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 49.

The square root of 3863236864 is about 62154.9423939883. The cubic root of 3863236864 is about 1569.0993609221.

The spelling of 3863236864 in words is "three billion, eight hundred sixty-three million, two hundred thirty-six thousand, eight hundred sixty-four".