28889942286 has 16 divisors (see below), whose sum is σ = 57785152464. Its totient is φ = 9629102784.

The previous prime is 28889942233. The next prime is 28889942309. The reversal of 28889942286 is 68224998882.

It is a congruent number.

It is an unprimeable number.

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, 146325 + ... + 281408.

It is an arithmetic number, because the mean of its divisors is an integer number (3611572029).

Almost surely, 2^28889942286 is an apocalyptic number.

28889942286 is an abundant number, since it is smaller than the sum of its proper divisors (28895210178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28889942286 is a wasteful number, since it uses less digits than its factorization.

28889942286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438995.

The product of its digits is 63700992, while the sum is 66.

The spelling of 28889942286 in words is "twenty-eight billion, eight hundred eighty-nine million, nine hundred forty-two thousand, two hundred eighty-six".