228878455899 has 16 divisors (see below), whose sum is σ = 335199571200. Its totient is φ = 138269821536.

The previous prime is 228878455889. The next prime is 228878455909. The reversal of 228878455899 is 998554878822.

It is an interprime number because it is at equal distance from previous prime (228878455889) and next prime (228878455909).

It is not a de Polignac number, because 228878455899 - 2⁸ = 228878455643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228878455899.

It is not an unprimeable number, because it can be changed into a prime (228878455889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87290244 + ... + 87292865.

It is an arithmetic number, because the mean of its divisors is an integer number (20949973200).

Almost surely, 2^228878455899 is an apocalyptic number.

228878455899 is a deficient number, since it is larger than the sum of its proper divisors (106321115301).

228878455899 is a wasteful number, since it uses less digits than its factorization.

228878455899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174583154.

The product of its digits is 928972800, while the sum is 75.

The spelling of 228878455899 in words is "two hundred twenty-eight billion, eight hundred seventy-eight million, four hundred fifty-five thousand, eight hundred ninety-nine".