4851354521 has 4 divisors (see below), whose sum is σ = 5224535652. Its totient is φ = 4478173392.

The previous prime is 4851354491. The next prime is 4851354587. The reversal of 4851354521 is 1254531584.

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 222457225 + 4628897296 = 14915^2 + 68036^2 .

It is a cyclic number.

It is not a de Polignac number, because 4851354521 - 2¹⁰ = 4851353497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4851359521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186590546 + ... + 186590571.

It is an arithmetic number, because the mean of its divisors is an integer number (1306133913).

Almost surely, 2^4851354521 is an apocalyptic number.

It is an amenable number.

4851354521 is a deficient number, since it is larger than the sum of its proper divisors (373181131).

4851354521 is a wasteful number, since it uses less digits than its factorization.

4851354521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373181130.

The product of its digits is 96000, while the sum is 38.

The square root of 4851354521 is about 69651.6656010465. The cubic root of 4851354521 is about 1692.8598475147.

The spelling of 4851354521 in words is "four billion, eight hundred fifty-one million, three hundred fifty-four thousand, five hundred twenty-one".