28316312806 has 8 divisors (see below), whose sum is σ = 42570349704. Its totient is φ = 14126196240.

The previous prime is 28316312747. The next prime is 28316312821. The reversal of 28316312806 is 60821361382.

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

It is a congruent 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, 15978975 + ... + 15980746.

It is an arithmetic number, because the mean of its divisors is an integer number (5321293713).

Almost surely, 2^28316312806 is an apocalyptic number.

28316312806 is a deficient number, since it is larger than the sum of its proper divisors (14254036898).

28316312806 is a wasteful number, since it uses less digits than its factorization.

28316312806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31960166.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 28316312806 in words is "twenty-eight billion, three hundred sixteen million, three hundred twelve thousand, eight hundred six".