226218248978 has 6 divisors (see below), whose sum is σ = 339328382421. Its totient is φ = 113108788172.

The previous prime is 226218248941. The next prime is 226218249007. The reversal of 226218248978 is 879842812622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 226021323889 + 196925089 = 475417^2 + 14033^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=336317.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 504476 + ... + 840792.

Almost surely, 2^226218248978 is an apocalyptic number.

226218248978 is a deficient number, since it is larger than the sum of its proper divisors (113110133443).

226218248978 is an frugal number, since it uses more digits than its factorization.

226218248978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672636 (or 336319 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 59.

The spelling of 226218248978 in words is "two hundred twenty-six billion, two hundred eighteen million, two hundred forty-eight thousand, nine hundred seventy-eight".