228310641887 has 8 divisors (see below), whose sum is σ = 240332937600. Its totient is φ = 216288940824.

The previous prime is 228310641883. The next prime is 228310641913. The reversal of 228310641887 is 788146013822.

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 228310641887 - 2² = 228310641883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228310641883) 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, 792164 + ... + 1041222.

It is an arithmetic number, because the mean of its divisors is an integer number (30041617200).

Almost surely, 2^228310641887 is an apocalyptic number.

228310641887 is a deficient number, since it is larger than the sum of its proper divisors (12022295713).

228310641887 is a wasteful number, since it uses less digits than its factorization.

228310641887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297325.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 228310641887 in words is "two hundred twenty-eight billion, three hundred ten million, six hundred forty-one thousand, eight hundred eighty-seven".