228531322624 has 36 divisors (see below), whose sum is σ = 497639945880. Its totient is φ = 103877872640.

The previous prime is 228531322597. The next prime is 228531322639. The reversal of 228531322624 is 426223135822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40574479 + ... + 40580110.

It is an arithmetic number, because the mean of its divisors is an integer number (13823331830).

Almost surely, 2^228531322624 is an apocalyptic number.

It is an amenable number.

228531322624 is an abundant number, since it is smaller than the sum of its proper divisors (269108623256).

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

228531322624 is an equidigital number, since it uses as much as digits as its factorization.

228531322624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81154616 (or 81154602 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

It can be divided in two parts, 228531 and 322624, that added together give a palindrome (551155).

The spelling of 228531322624 in words is "two hundred twenty-eight billion, five hundred thirty-one million, three hundred twenty-two thousand, six hundred twenty-four".