28311822336 has 224 divisors, whose sum is σ = 86816793600. Its totient is φ = 8038711296.

The previous prime is 28311822323. The next prime is 28311822337. The reversal of 28311822336 is 63322811382.

It is a tau number, because it is divible by the number of its divisors (224).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 28311822294 and 28311822303.

It is not an unprimeable number, because it can be changed into a prime (28311822337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34233955 + ... + 34234781.

Almost surely, 2^28311822336 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 28311822336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43408396800).

28311822336 is an abundant number, since it is smaller than the sum of its proper divisors (58504971264).

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

28311822336 is an equidigital number, since it uses as much as digits as its factorization.

28311822336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1038 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The spelling of 28311822336 in words is "twenty-eight billion, three hundred eleven million, eight hundred twenty-two thousand, three hundred thirty-six".