228771636480 has 432 divisors, whose sum is σ = 820832463360. Its totient is φ = 58757529600.

The previous prime is 228771636427. The next prime is 228771636481. The reversal of 228771636480 is 84636177822.

228771636480 is a `hidden beast` number, since 22 + 87 + 7 + 1 + 63 + 6 + 480 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228771636481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230848785 + ... + 230849775.

Almost surely, 2^228771636480 is an apocalyptic number.

228771636480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228771636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410416231680).

228771636480 is an abundant number, since it is smaller than the sum of its proper divisors (592060826880).

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

228771636480 is a wasteful number, since it uses less digits than its factorization.

228771636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 228771636480 in words is "two hundred twenty-eight billion, seven hundred seventy-one million, six hundred thirty-six thousand, four hundred eighty".