228730719533 has 4 divisors (see below), whose sum is σ = 228847959168. Its totient is φ = 228613479900.

The previous prime is 228730719523. The next prime is 228730719551. The reversal of 228730719533 is 335917037822.

228730719533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 335917037822 = 2 ⋅167958518911.

It is a cyclic number.

It is not a de Polignac number, because 228730719533 - 2¹⁰ = 228730718509 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 (228730719523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58616891 + ... + 58620792.

It is an arithmetic number, because the mean of its divisors is an integer number (57211989792).

Almost surely, 2^228730719533 is an apocalyptic number.

It is an amenable number.

228730719533 is a deficient number, since it is larger than the sum of its proper divisors (117239635).

228730719533 is a wasteful number, since it uses less digits than its factorization.

228730719533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117239634.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 228730719533 in words is "two hundred twenty-eight billion, seven hundred thirty million, seven hundred nineteen thousand, five hundred thirty-three".