4781728131 has 8 divisors (see below), whose sum is σ = 6412491600. Its totient is φ = 3169391712.

The previous prime is 4781728099. The next prime is 4781728151. The reversal of 4781728131 is 1318271874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4781728131 - 2⁵ = 4781728099 is a prime.

It is a super-2 number, since 2×4781728131² = 45729847837593506322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4781728151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606156 + ... + 4607193.

It is an arithmetic number, because the mean of its divisors is an integer number (801561450).

Almost surely, 2^4781728131 is an apocalyptic number.

4781728131 is a deficient number, since it is larger than the sum of its proper divisors (1630763469).

4781728131 is a wasteful number, since it uses less digits than its factorization.

4781728131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9213525.

The product of its digits is 75264, while the sum is 42.

The square root of 4781728131 is about 69150.0407158232. The cubic root of 4781728131 is about 1684.7221795684.

The spelling of 4781728131 in words is "four billion, seven hundred eighty-one million, seven hundred twenty-eight thousand, one hundred thirty-one".