228587216895 has 12 divisors (see below), whose sum is σ = 396217842696. Its totient is φ = 121913182320.

The previous prime is 228587216887. The next prime is 228587216899. The reversal of 228587216895 is 598612785822.

228587216895 is a `hidden beast` number, since 2 + 28 + 587 + 21 + 6 + 8 + 9 + 5 = 666.

It is not a de Polignac number, because 228587216895 - 2³ = 228587216887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228587216899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2539857921 + ... + 2539858010.

It is an arithmetic number, because the mean of its divisors is an integer number (33018153558).

Almost surely, 2^228587216895 is an apocalyptic number.

228587216895 is a deficient number, since it is larger than the sum of its proper divisors (167630625801).

228587216895 is a wasteful number, since it uses less digits than its factorization.

228587216895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079715942 (or 5079715939 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 228587216895 in words is "two hundred twenty-eight billion, five hundred eighty-seven million, two hundred sixteen thousand, eight hundred ninety-five".