228793797773 has 4 divisors (see below), whose sum is σ = 228928621980. Its totient is φ = 228658973568.

The previous prime is 228793797737. The next prime is 228793797779. The reversal of 228793797773 is 377797397822.

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 155676015364 + 73117782409 = 394558^2 + 270403^2 .

It is a cyclic number.

It is not a de Polignac number, because 228793797773 - 2⁶ = 228793797709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228793797697 and 228793797706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228793797779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67409558 + ... + 67412951.

It is an arithmetic number, because the mean of its divisors is an integer number (57232155495).

Almost surely, 2^228793797773 is an apocalyptic number.

It is an amenable number.

228793797773 is a deficient number, since it is larger than the sum of its proper divisors (134824207).

228793797773 is a wasteful number, since it uses less digits than its factorization.

228793797773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134824206.

The product of its digits is 392073696, while the sum is 71.

The spelling of 228793797773 in words is "two hundred twenty-eight billion, seven hundred ninety-three million, seven hundred ninety-seven thousand, seven hundred seventy-three".