28083685117 has 8 divisors (see below), whose sum is σ = 28631642400. Its totient is φ = 27538126704.

The previous prime is 28083685099. The next prime is 28083685121. The reversal of 28083685117 is 71158638082.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28083685117 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 (28083685127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576067 + ... + 622912.

It is an arithmetic number, because the mean of its divisors is an integer number (3578955300).

Almost surely, 2^28083685117 is an apocalyptic number.

It is an amenable number.

28083685117 is a deficient number, since it is larger than the sum of its proper divisors (547957283).

28083685117 is a wasteful number, since it uses less digits than its factorization.

28083685117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199435.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 28083685117 in words is "twenty-eight billion, eighty-three million, six hundred eighty-five thousand, one hundred seventeen".