28296308288 has 14 divisors (see below), whose sum is σ = 56150486886. Its totient is φ = 14148154112.

The previous prime is 28296308281. The next prime is 28296308323. The reversal of 28296308288 is 88280369282.

It can be written as a sum of positive squares in only one way, i.e., 27851604544 + 444703744 = 166888^2 + 21088^2 .

It is not an unprimeable number, because it can be changed into a prime (28296308281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221064845 + ... + 221064972.

Almost surely, 2^28296308288 is an apocalyptic number.

It is an amenable number.

28296308288 is a deficient number, since it is larger than the sum of its proper divisors (27854178598).

28296308288 is an equidigital number, since it uses as much as digits as its factorization.

28296308288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442129829 (or 442129819 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 28296308288 in words is "twenty-eight billion, two hundred ninety-six million, three hundred eight thousand, two hundred eighty-eight".