228842512479 has 24 divisors (see below), whose sum is σ = 377786708000. Its totient is φ = 130761978048.

The previous prime is 228842512477. The next prime is 228842512489. The reversal of 228842512479 is 974215248822.

228842512479 is a `hidden beast` number, since 2 + 2 + 8 + 84 + 2 + 512 + 47 + 9 = 666.

It is not a de Polignac number, because 228842512479 - 2¹ = 228842512477 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228842512477) 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 23 ways as a sum of consecutive naturals, for example, 2007729 + ... + 2118645.

Almost surely, 2^228842512479 is an apocalyptic number.

228842512479 is a deficient number, since it is larger than the sum of its proper divisors (148944195521).

228842512479 is a wasteful number, since it uses less digits than its factorization.

228842512479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143679 (or 143676 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

It can be divided in two parts, 228842 and 512479, that added together give a square (741321 = 861²).

The spelling of 228842512479 in words is "two hundred twenty-eight billion, eight hundred forty-two million, five hundred twelve thousand, four hundred seventy-nine".