4991472216 has 96 divisors (see below), whose sum is σ = 14471496000. Its totient is φ = 1549513152.

The previous prime is 4991472209. The next prime is 4991472229. The reversal of 4991472216 is 6122741994.

4991472216 is a `hidden beast` number, since 499 + 147 + 2 + 2 + 16 = 666.

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, 49791 + ... + 111633.

It is an arithmetic number, because the mean of its divisors is an integer number (150744750).

Almost surely, 2^4991472216 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 4991472216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7235748000).

4991472216 is an abundant number, since it is smaller than the sum of its proper divisors (9480023784).

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

4991472216 is a wasteful number, since it uses less digits than its factorization.

4991472216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61933 (or 61926 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 4991472216 is about 70650.3518462576. The cubic root of 4991472216 is about 1709.0032397634.

The spelling of 4991472216 in words is "four billion, nine hundred ninety-one million, four hundred seventy-two thousand, two hundred sixteen".