228471263868 has 12 divisors (see below), whose sum is σ = 533099615720. Its totient is φ = 76157087952.

The previous prime is 228471263857. The next prime is 228471263903. The reversal of 228471263868 is 868362174822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9519635983 + ... + 9519636006.

Almost surely, 2^228471263868 is an apocalyptic number.

It is an amenable number.

228471263868 is an abundant number, since it is smaller than the sum of its proper divisors (304628351852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228471263868 is a wasteful number, since it uses less digits than its factorization.

228471263868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039271996 (or 19039271994 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 57.

The spelling of 228471263868 in words is "two hundred twenty-eight billion, four hundred seventy-one million, two hundred sixty-three thousand, eight hundred sixty-eight".