3876647216 has 80 divisors (see below), whose sum is σ = 8789437440. Its totient is φ = 1640321280.

The previous prime is 3876647209. The next prime is 3876647227. The reversal of 3876647216 is 6127466783.

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, 106691 + ... + 138333.

It is an arithmetic number, because the mean of its divisors is an integer number (109867968).

Almost surely, 2^3876647216 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 3876647216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4394718720).

3876647216 is an abundant number, since it is smaller than the sum of its proper divisors (4912790224).

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

3876647216 is a wasteful number, since it uses less digits than its factorization.

3876647216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31714 (or 31708 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The square root of 3876647216 is about 62262.7273414842. The cubic root of 3876647216 is about 1570.9128552037.

The spelling of 3876647216 in words is "three billion, eight hundred seventy-six million, six hundred forty-seven thousand, two hundred sixteen".