28330000049 has 16 divisors (see below), whose sum is σ = 31392011280. Its totient is φ = 25396727040.

The previous prime is 28330000043. The next prime is 28330000063. The reversal of 28330000049 is 94000003382.

It can be written as a sum of positive squares in 8 ways, for example, as 15880225 + 28314119824 = 3985^2 + 168268^2 .

It is a cyclic number.

It is not a de Polignac number, because 28330000049 - 2¹⁶ = 28329934513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28329999976 and 28330000030.

It is not an unprimeable number, because it can be changed into a prime (28330000043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205787 + ... + 314655.

It is an arithmetic number, because the mean of its divisors is an integer number (1962000705).

Almost surely, 2^28330000049 is an apocalyptic number.

It is an amenable number.

28330000049 is a deficient number, since it is larger than the sum of its proper divisors (3062011231).

28330000049 is a wasteful number, since it uses less digits than its factorization.

28330000049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109460.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 28330000049 in words is "twenty-eight billion, three hundred thirty million, forty-nine", and thus it is an aban number.