5143790821 has 16 divisors (see below), whose sum is σ = 5652881136. Its totient is φ = 4651186176.

The previous prime is 5143790797. The next prime is 5143790879. The reversal of 5143790821 is 1280973415.

It can be written as a sum of positive squares in 8 ways, for example, as 893025 + 5142897796 = 945^2 + 71714^2 .

It is not a de Polignac number, because 5143790821 - 2¹¹ = 5143788773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5143790621) 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 15 ways as a sum of consecutive naturals, for example, 458151 + ... + 469243.

It is an arithmetic number, because the mean of its divisors is an integer number (353305071).

Almost surely, 2^5143790821 is an apocalyptic number.

It is an amenable number.

5143790821 is a deficient number, since it is larger than the sum of its proper divisors (509090315).

5143790821 is a wasteful number, since it uses less digits than its factorization.

5143790821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 5143790821 is about 71720.2260244626. The cubic root of 5143790821 is about 1726.2131991743.

The spelling of 5143790821 in words is "five billion, one hundred forty-three million, seven hundred ninety thousand, eight hundred twenty-one".