4991470848 has 648 divisors, whose sum is σ = 19084010400. Its totient is φ = 1240178688.

The previous prime is 4991470837. The next prime is 4991470871. The reversal of 4991470848 is 8480741994.

4991470848 is a `hidden beast` number, since 4 + 9 + 91 + 470 + 84 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4991470794 and 4991470803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27885223 + ... + 27885401.

Almost surely, 2^4991470848 is an apocalyptic number.

4991470848 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4991470848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9542005200).

4991470848 is an abundant number, since it is smaller than the sum of its proper divisors (14092539552).

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

4991470848 is a wasteful number, since it uses less digits than its factorization.

4991470848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 4991470848 is about 70650.3421647765. The cubic root of 4991470848 is about 1709.0030836360.

The spelling of 4991470848 in words is "four billion, nine hundred ninety-one million, four hundred seventy thousand, eight hundred forty-eight".