4727991546 has 80 divisors (see below), whose sum is σ = 10784933280. Its totient is φ = 1547773920.

The previous prime is 4727991509. The next prime is 4727991551. The reversal of 4727991546 is 6451997274.

4727991546 is a `hidden beast` number, since 4 + 7 + 2 + 7 + 9 + 91 + 546 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4727991492 and 4727991501.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7152456 + ... + 7153116.

It is an arithmetic number, because the mean of its divisors is an integer number (134811666).

Almost surely, 2^4727991546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4727991546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5392466640).

4727991546 is an abundant number, since it is smaller than the sum of its proper divisors (6056941734).

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

4727991546 is a wasteful number, since it uses less digits than its factorization.

4727991546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1392 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 4727991546 is about 68760.3922763679. The cubic root of 4727991546 is about 1678.3874769736.

The spelling of 4727991546 in words is "four billion, seven hundred twenty-seven million, nine hundred ninety-one thousand, five hundred forty-six".