28285106817 has 8 divisors (see below), whose sum is σ = 41141973600. Its totient is φ = 17142488960.

The previous prime is 28285106813. The next prime is 28285106887. The reversal of 28285106817 is 71860158282.

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 28285106817 - 2² = 28285106813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28285106813) 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, 428562192 + ... + 428562257.

It is an arithmetic number, because the mean of its divisors is an integer number (5142746700).

Almost surely, 2^28285106817 is an apocalyptic number.

It is an amenable number.

28285106817 is a deficient number, since it is larger than the sum of its proper divisors (12856866783).

28285106817 is a wasteful number, since it uses less digits than its factorization.

28285106817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857124463.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 28285106817 in words is "twenty-eight billion, two hundred eighty-five million, one hundred six thousand, eight hundred seventeen".