226478638861 has 8 divisors (see below), whose sum is σ = 228824861184. Its totient is φ = 224134453200.

The previous prime is 226478638853. The next prime is 226478638877. The reversal of 226478638861 is 168836874622.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226478638861 - 2³ = 226478638853 is a prime.

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 226478638861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226478638891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285105 + ... + 730918.

It is an arithmetic number, because the mean of its divisors is an integer number (28603107648).

Almost surely, 2^226478638861 is an apocalyptic number.

It is an amenable number.

226478638861 is a deficient number, since it is larger than the sum of its proper divisors (2346222323).

226478638861 is a wasteful number, since it uses less digits than its factorization.

226478638861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018331.

The product of its digits is 37158912, while the sum is 61.

The spelling of 226478638861 in words is "two hundred twenty-six billion, four hundred seventy-eight million, six hundred thirty-eight thousand, eight hundred sixty-one".