28109086339 has 8 divisors (see below), whose sum is σ = 29764074240. Its totient is φ = 26454266496.

The previous prime is 28109086309. The next prime is 28109086361. The reversal of 28109086339 is 93368090182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28109086339 - 2¹³ = 28109078147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28109086292 and 28109086301.

It is not an unprimeable number, because it can be changed into a prime (28109086309) 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 7 ways as a sum of consecutive naturals, for example, 508702 + ... + 561244.

It is an arithmetic number, because the mean of its divisors is an integer number (3720509280).

Almost surely, 2^28109086339 is an apocalyptic number.

28109086339 is a deficient number, since it is larger than the sum of its proper divisors (1654987901).

28109086339 is a wasteful number, since it uses less digits than its factorization.

28109086339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84029.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 28109086339 in words is "twenty-eight billion, one hundred nine million, eighty-six thousand, three hundred thirty-nine".