28887717163 has 8 divisors (see below), whose sum is σ = 29049906096. Its totient is φ = 28725657600.

The previous prime is 28887717161. The next prime is 28887717203. The reversal of 28887717163 is 36171778882.

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 28887717163 - 2¹ = 28887717161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28887717098 and 28887717107.

It is not an unprimeable number, because it can be changed into a prime (28887717161) 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, 434283 + ... + 496363.

It is an arithmetic number, because the mean of its divisors is an integer number (3631238262).

Almost surely, 2^28887717163 is an apocalyptic number.

28887717163 is a deficient number, since it is larger than the sum of its proper divisors (162188933).

28887717163 is a wasteful number, since it uses less digits than its factorization.

28887717163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64685.

The product of its digits is 6322176, while the sum is 58.

The spelling of 28887717163 in words is "twenty-eight billion, eight hundred eighty-seven million, seven hundred seventeen thousand, one hundred sixty-three".