28608775025506 has 8 divisors (see below), whose sum is σ = 46214175041244. Its totient is φ = 13204050011760.

The previous prime is 28608775025497. The next prime is 28608775025513. The reversal of 28608775025506 is 60552057780682.

It can be written as a sum of positive squares in 2 ways, for example, as 28529752755625 + 79022269881 = 5341325^2 + 281109^2 .

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

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, 550168750465 + ... + 550168750516.

Almost surely, 2^{28608775025506} is an apocalyptic number.

28608775025506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28608775025506 is a deficient number, since it is larger than the sum of its proper divisors (17605400015738).

28608775025506 is a wasteful number, since it uses less digits than its factorization.

28608775025506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100337500996.

The product of its (nonzero) digits is 56448000, while the sum is 61.

The spelling of 28608775025506 in words is "twenty-eight trillion, six hundred eight billion, seven hundred seventy-five million, twenty-five thousand, five hundred six".