223830778009 has 4 divisors (see below), whose sum is σ = 223839643060. Its totient is φ = 223821912960.

The previous prime is 223830777977. The next prime is 223830778081. The reversal of 223830778009 is 900877038322.

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 148286606400 + 75544171609 = 385080^2 + 274853^2 .

It is a cyclic number.

It is not a de Polignac number, because 223830778009 - 2⁵ = 223830777977 is a prime.

It is a super-2 number, since 2×223830778009² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223830778099) 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, 4394544 + ... + 4445185.

It is an arithmetic number, because the mean of its divisors is an integer number (55959910765).

Almost surely, 2^223830778009 is an apocalyptic number.

It is an amenable number.

223830778009 is a deficient number, since it is larger than the sum of its proper divisors (8865051).

223830778009 is an equidigital number, since it uses as much as digits as its factorization.

223830778009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8865050.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 223830778009 in words is "two hundred twenty-three billion, eight hundred thirty million, seven hundred seventy-eight thousand, nine".