28300216132 has 12 divisors (see below), whose sum is σ = 52438635900. Its totient is φ = 13317748736.

The previous prime is 28300216099. The next prime is 28300216141. The reversal of 28300216132 is 23161200382.

It can be written as a sum of positive squares in 2 ways, for example, as 24704294976 + 3595921156 = 157176^2 + 59966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28300216132.

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, 208089757 + ... + 208089892.

It is an arithmetic number, because the mean of its divisors is an integer number (4369886325).

Almost surely, 2^28300216132 is an apocalyptic number.

It is an amenable number.

28300216132 is a deficient number, since it is larger than the sum of its proper divisors (24138419768).

28300216132 is a wasteful number, since it uses less digits than its factorization.

28300216132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416179670 (or 416179668 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 28300216132 in words is "twenty-eight billion, three hundred million, two hundred sixteen thousand, one hundred thirty-two".