4728142505 has 4 divisors (see below), whose sum is σ = 5673771012. Its totient is φ = 3782514000.

The previous prime is 4728142477. The next prime is 4728142567. The reversal of 4728142505 is 5052418274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1966745104 + 2761397401 = 44348^2 + 52549^2 .

It is not a de Polignac number, because 4728142505 - 2¹⁸ = 4727880361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472814246 + ... + 472814255.

It is an arithmetic number, because the mean of its divisors is an integer number (1418442753).

Almost surely, 2^4728142505 is an apocalyptic number.

It is an amenable number.

4728142505 is a deficient number, since it is larger than the sum of its proper divisors (945628507).

4728142505 is an equidigital number, since it uses as much as digits as its factorization.

4728142505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945628506.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 4728142505 is about 68761.4899853108. The cubic root of 4728142505 is about 1678.4053397381.

The spelling of 4728142505 in words is "four billion, seven hundred twenty-eight million, one hundred forty-two thousand, five hundred five".