28171030835 has 4 divisors (see below), whose sum is σ = 33805237008. Its totient is φ = 22536824664.

The previous prime is 28171030819. The next prime is 28171030883. The reversal of 28171030835 is 53803017182.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28171030835 - 2⁴ = 28171030819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817103079 + ... + 2817103088.

It is an arithmetic number, because the mean of its divisors is an integer number (8451309252).

Almost surely, 2^28171030835 is an apocalyptic number.

28171030835 is a deficient number, since it is larger than the sum of its proper divisors (5634206173).

28171030835 is an equidigital number, since it uses as much as digits as its factorization.

28171030835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634206172.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 28171030835 in words is "twenty-eight billion, one hundred seventy-one million, thirty thousand, eight hundred thirty-five".