227643108479 has 16 divisors (see below), whose sum is σ = 244238610528. Its totient is φ = 211420403712.

The previous prime is 227643108443. The next prime is 227643108481. The reversal of 227643108479 is 974801346722.

It is a happy number.

It is not a de Polignac number, because 227643108479 - 2²⁴ = 227626331263 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 227643108479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227643108439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175049 + ... + 697085.

It is an arithmetic number, because the mean of its divisors is an integer number (15264913158).

Almost surely, 2^227643108479 is an apocalyptic number.

227643108479 is a deficient number, since it is larger than the sum of its proper divisors (16595502049).

227643108479 is a wasteful number, since it uses less digits than its factorization.

227643108479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522394.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 227643108479 in words is "two hundred twenty-seven billion, six hundred forty-three million, one hundred eight thousand, four hundred seventy-nine".