535842783221 has 4 divisors (see below), whose sum is σ = 536358513600. Its totient is φ = 535327052844.

The previous prime is 535842783187. The next prime is 535842783241. The reversal of 535842783221 is 122387248535.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 535842783221 - 2¹⁰ = 535842782197 is a prime.

It is a super-3 number, since 3×535842783221³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 535842783221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535842783241) 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, 257863631 + ... + 257865708.

It is an arithmetic number, because the mean of its divisors is an integer number (134089628400).

Almost surely, 2^535842783221 is an apocalyptic number.

It is an amenable number.

535842783221 is a deficient number, since it is larger than the sum of its proper divisors (515730379).

535842783221 is a wasteful number, since it uses less digits than its factorization.

535842783221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515730378.

The product of its digits is 3225600, while the sum is 50.

The spelling of 535842783221 in words is "five hundred thirty-five billion, eight hundred forty-two million, seven hundred eighty-three thousand, two hundred twenty-one".