3881863564 has 48 divisors (see below), whose sum is σ = 6970199040. Its totient is φ = 1891284480.

The previous prime is 3881863561. The next prime is 3881863597. The reversal of 3881863564 is 4653681883.

It is not an unprimeable number, because it can be changed into a prime (3881863561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9006429 + ... + 9006859.

It is an arithmetic number, because the mean of its divisors is an integer number (145212480).

Almost surely, 2^3881863564 is an apocalyptic number.

It is an amenable number.

3881863564 is a deficient number, since it is larger than the sum of its proper divisors (3088335476).

3881863564 is a wasteful number, since it uses less digits than its factorization.

3881863564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 836 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 3881863564 is about 62304.6030723252. The cubic root of 3881863564 is about 1571.6171369359.

The spelling of 3881863564 in words is "three billion, eight hundred eighty-one million, eight hundred sixty-three thousand, five hundred sixty-four".