228624420668856 has 32 divisors (see below), whose sum is σ = 571615481504400. Its totient is φ = 76200882912000.

The previous prime is 228624420668789. The next prime is 228624420668879. The reversal of 228624420668856 is 658866024426822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453324661 + ... + 453828708.

Almost surely, 2^{228624420668856} is an apocalyptic number.

It is an amenable number.

228624420668856 is an abundant number, since it is smaller than the sum of its proper divisors (342991060835544).

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

228624420668856 is a wasteful number, since it uses less digits than its factorization.

228624420668856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907163879 (or 907163875 counting only the distinct ones).

The product of its (nonzero) digits is 849346560, while the sum is 69.

The spelling of 228624420668856 in words is "two hundred twenty-eight trillion, six hundred twenty-four billion, four hundred twenty million, six hundred sixty-eight thousand, eight hundred fifty-six".