28888730285859 has 12 divisors (see below), whose sum is σ = 41732092724296. Its totient is φ = 19257341175072.

The previous prime is 28888730285837. The next prime is 28888730285861. The reversal of 28888730285859 is 95858203788882.

28888730285859 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 8 + 7 + 3 + 0 + 28 + 585 + 9 = 666.

It is not a de Polignac number, because 28888730285859 - 2¹⁹ = 28888729761571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28888730285809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150928114 + ... + 151119399.

Almost surely, 2^{28888730285859} is an apocalyptic number.

28888730285859 is a deficient number, since it is larger than the sum of its proper divisors (12843362438437).

28888730285859 is a wasteful number, since it uses less digits than its factorization.

28888730285859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302058146 (or 302058143 counting only the distinct ones).

The product of its (nonzero) digits is 4954521600, while the sum is 81.

The spelling of 28888730285859 in words is "twenty-eight trillion, eight hundred eighty-eight billion, seven hundred thirty million, two hundred eighty-five thousand, eight hundred fifty-nine".