228628515150 has 144 divisors (see below), whose sum is σ = 702187200000. Its totient is φ = 52243894080.

The previous prime is 228628515131. The next prime is 228628515151. The reversal of 228628515150 is 51515826822.

228628515150 is a `hidden beast` number, since 2 + 2 + 8 + 628 + 5 + 1 + 5 + 15 + 0 = 666.

228628515150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 228628515096 and 228628515105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228628515151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15739591 + ... + 15754109.

It is an arithmetic number, because the mean of its divisors is an integer number (4876300000).

Almost surely, 2^228628515150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228628515150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351093600000).

228628515150 is an abundant number, since it is smaller than the sum of its proper divisors (473558684850).

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

228628515150 is a wasteful number, since it uses less digits than its factorization.

228628515150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543 (or 19535 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 228628515150 in words is "two hundred twenty-eight billion, six hundred twenty-eight million, five hundred fifteen thousand, one hundred fifty".