3863686464 has 168 divisors, whose sum is σ = 12607088832. Its totient is φ = 1119866880.

The previous prime is 3863686447. The next prime is 3863686471. The reversal of 3863686464 is 4646863683.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3863686464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132472 + ... + 158984.

Almost surely, 2^3863686464 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 3863686464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6303544416).

3863686464 is an abundant number, since it is smaller than the sum of its proper divisors (8743402368).

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

3863686464 is a wasteful number, since it uses less digits than its factorization.

3863686464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26565 (or 26552 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 54.

The square root of 3863686464 is about 62158.5590566577. The cubic root of 3863686464 is about 1569.1602286807.

The spelling of 3863686464 in words is "three billion, eight hundred sixty-three million, six hundred eighty-six thousand, four hundred sixty-four".