226346643623 has 4 divisors (see below), whose sum is σ = 233648148288. Its totient is φ = 219045138960.

The previous prime is 226346643613. The next prime is 226346643629. The reversal of 226346643623 is 326346643622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226346643623 - 2⁶ = 226346643559 is a prime.

It is a super-2 number, since 2×226346643623² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226346643629) 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, 3650752286 + ... + 3650752347.

It is an arithmetic number, because the mean of its divisors is an integer number (58412037072).

Almost surely, 2^226346643623 is an apocalyptic number.

226346643623 is a deficient number, since it is larger than the sum of its proper divisors (7301504665).

226346643623 is an equidigital number, since it uses as much as digits as its factorization.

226346643623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301504664.

The product of its digits is 4478976, while the sum is 47.

Subtracting 226346643623 from its reverse (326346643622), we obtain a palindrome (99999999999).

The spelling of 226346643623 in words is "two hundred twenty-six billion, three hundred forty-six million, six hundred forty-three thousand, six hundred twenty-three".