28160265617 has 16 divisors (see below), whose sum is σ = 32342846400. Its totient is φ = 24248586240.

The previous prime is 28160265569. The next prime is 28160265629. The reversal of 28160265617 is 71656206182.

It is a cyclic number.

It is not a de Polignac number, because 28160265617 - 2¹⁰ = 28160264593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28160265317) 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, 1952609 + ... + 1966977.

It is an arithmetic number, because the mean of its divisors is an integer number (2021427900).

Almost surely, 2^28160265617 is an apocalyptic number.

It is an amenable number.

28160265617 is a deficient number, since it is larger than the sum of its proper divisors (4182580783).

28160265617 is a wasteful number, since it uses less digits than its factorization.

28160265617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23776.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 28160265617 in words is "twenty-eight billion, one hundred sixty million, two hundred sixty-five thousand, six hundred seventeen".