28827950858 has 16 divisors (see below), whose sum is σ = 49421957760. Its totient is φ = 12354182736.

The previous prime is 28827950857. The next prime is 28827950861. The reversal of 28827950858 is 85805972882.

It is a self number, because there is not a number n which added to its sum of digits gives 28827950858.

It is not an unprimeable number, because it can be changed into a prime (28827950857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 298760 + ... + 383292.

It is an arithmetic number, because the mean of its divisors is an integer number (3088872360).

Almost surely, 2^28827950858 is an apocalyptic number.

28827950858 is a deficient number, since it is larger than the sum of its proper divisors (20594006902).

28827950858 is a wasteful number, since it uses less digits than its factorization.

28827950858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108901.

The product of its (nonzero) digits is 25804800, while the sum is 62.

The spelling of 28827950858 in words is "twenty-eight billion, eight hundred twenty-seven million, nine hundred fifty thousand, eight hundred fifty-eight".