4573013821 has 4 divisors (see below), whose sum is σ = 4842014652. Its totient is φ = 4304012992.

The previous prime is 4573013813. The next prime is 4573013869. The reversal of 4573013821 is 1283103754.

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 1658525625 + 2914488196 = 40725^2 + 53986^2 .

It is a cyclic number.

It is not a de Polignac number, because 4573013821 - 2³ = 4573013813 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 (4573013021) 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, 134500390 + ... + 134500423.

It is an arithmetic number, because the mean of its divisors is an integer number (1210503663).

Almost surely, 2^4573013821 is an apocalyptic number.

It is an amenable number.

4573013821 is a deficient number, since it is larger than the sum of its proper divisors (269000831).

4573013821 is a wasteful number, since it uses less digits than its factorization.

4573013821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269000830.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 4573013821 is about 67624.0624408206. The cubic root of 4573013821 is about 1659.8448857094.

The spelling of 4573013821 in words is "four billion, five hundred seventy-three million, thirteen thousand, eight hundred twenty-one".