3881562500 has 48 divisors (see below), whose sum is σ = 8491579824. Its totient is φ = 1552500000.

The previous prime is 3881562491. The next prime is 3881562551. The reversal of 3881562500 is 52651883.

It can be written as a sum of positive squares in 8 ways, for example, as 3737610496 + 143952004 = 61136^2 + 11998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306290 + ... + 318710.

It is an arithmetic number, because the mean of its divisors is an integer number (176907913).

Almost surely, 2^3881562500 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 3881562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4245789912).

3881562500 is an abundant number, since it is smaller than the sum of its proper divisors (4610017324).

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

3881562500 is an frugal number, since it uses more digits than its factorization.

3881562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12460 (or 12428 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 3881562500 is about 62302.1869600097. The cubic root of 3881562500 is about 1571.5765061438.

The spelling of 3881562500 in words is "three billion, eight hundred eighty-one million, five hundred sixty-two thousand, five hundred".