28431584806 has 8 divisors (see below), whose sum is σ = 42666707520. Its totient is φ = 14209348968.

The previous prime is 28431584789. The next prime is 28431584851. The reversal of 28431584806 is 60848513482.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28431584806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216201 + ... + 3225028.

It is an arithmetic number, because the mean of its divisors is an integer number (5333338440).

Almost surely, 2^28431584806 is an apocalyptic number.

28431584806 is a deficient number, since it is larger than the sum of its proper divisors (14235122714).

28431584806 is a wasteful number, since it uses less digits than its factorization.

28431584806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443438.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 28431584806 in words is "twenty-eight billion, four hundred thirty-one million, five hundred eighty-four thousand, eight hundred six".