28578030106 has 16 divisors (see below), whose sum is σ = 44360787240. Its totient is φ = 13791447040.

The previous prime is 28578030101. The next prime is 28578030133. The reversal of 28578030106 is 60103087582.

It can be written as a sum of positive squares in 4 ways, for example, as 10855764481 + 17722265625 = 104191^2 + 133125^2 .

It is not an unprimeable number, because it can be changed into a prime (28578030101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82986 + ... + 253066.

Almost surely, 2^28578030106 is an apocalyptic number.

28578030106 is a deficient number, since it is larger than the sum of its proper divisors (15782757134).

28578030106 is a wasteful number, since it uses less digits than its factorization.

28578030106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173009.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 28578030106 in words is "twenty-eight billion, five hundred seventy-eight million, thirty thousand, one hundred six".