228431776752 has 140 divisors (see below), whose sum is σ = 684983065024. Its totient is φ = 73687553280.

The previous prime is 228431776667. The next prime is 228431776789. The reversal of 228431776752 is 257677134822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45708 + ... + 677460.

Almost surely, 2^228431776752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228431776752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342491532512).

228431776752 is an abundant number, since it is smaller than the sum of its proper divisors (456551288272).

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

228431776752 is an equidigital number, since it uses as much as digits as its factorization.

228431776752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631810 (or 631789 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 228431776752 in words is "two hundred twenty-eight billion, four hundred thirty-one million, seven hundred seventy-six thousand, seven hundred fifty-two".