28435930858 has 8 divisors (see below), whose sum is σ = 42697557252. Its totient is φ = 14203411776.

The previous prime is 28435930847. The next prime is 28435930867. The reversal of 28435930858 is 85803953482.

It can be written as a sum of positive squares in 2 ways, for example, as 25703464329 + 2732466529 = 160323^2 + 52273^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28435930799 and 28435930808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274385 + ... + 7278292.

Almost surely, 2^28435930858 is an apocalyptic number.

28435930858 is a deficient number, since it is larger than the sum of its proper divisors (14261626394).

28435930858 is a wasteful number, since it uses less digits than its factorization.

28435930858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14553656.

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 28435930858 in words is "twenty-eight billion, four hundred thirty-five million, nine hundred thirty thousand, eight hundred fifty-eight".