28605851706 has 8 divisors (see below), whose sum is σ = 57211703424. Its totient is φ = 9535283900.

The previous prime is 28605851683. The next prime is 28605851713. The reversal of 28605851706 is 60715850682.

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

28605851706 is an admirable number.

It is a super-2 number, since 2×28605851706² (a number of 22 digits) contains 22 as substring.

It is a Curzon 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, 2383820970 + ... + 2383820981.

It is an arithmetic number, because the mean of its divisors is an integer number (7151462928).

Almost surely, 2^28605851706 is an apocalyptic number.

28605851706 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28605851706 is a wasteful number, since it uses less digits than its factorization.

28605851706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767641956.

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 28605851706 in words is "twenty-eight billion, six hundred five million, eight hundred fifty-one thousand, seven hundred six".