28118026717 has 16 divisors (see below), whose sum is σ = 32326701120. Its totient is φ = 24187939200.

The previous prime is 28118026691. The next prime is 28118026789. The reversal of 28118026717 is 71762081182.

It is a cyclic number.

It is not a de Polignac number, because 28118026717 - 2¹⁵ = 28117993949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28118021717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99417 + ... + 257137.

It is an arithmetic number, because the mean of its divisors is an integer number (2020418820).

Almost surely, 2^28118026717 is an apocalyptic number.

It is an amenable number.

28118026717 is a deficient number, since it is larger than the sum of its proper divisors (4208674403).

28118026717 is a wasteful number, since it uses less digits than its factorization.

28118026717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158604.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 28118026717 in words is "twenty-eight billion, one hundred eighteen million, twenty-six thousand, seven hundred seventeen".