28276539107 has 4 divisors (see below), whose sum is σ = 28276896480. Its totient is φ = 28276181736.

The previous prime is 28276539101. The next prime is 28276539133. The reversal of 28276539107 is 70193567282.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28276539107 - 2¹⁶ = 28276473571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28276539101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307 + ... + 237812.

It is an arithmetic number, because the mean of its divisors is an integer number (7069224120).

Almost surely, 2^28276539107 is an apocalyptic number.

28276539107 is a deficient number, since it is larger than the sum of its proper divisors (357373).

28276539107 is a wasteful number, since it uses less digits than its factorization.

28276539107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357372.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 28276539107 in words is "twenty-eight billion, two hundred seventy-six million, five hundred thirty-nine thousand, one hundred seven".