28243102086 has 32 divisors (see below), whose sum is σ = 63043921920. Its totient is φ = 9372146472.

The previous prime is 28243102073. The next prime is 28243102087. The reversal of 28243102086 is 68020134282.

It is a self number, because there is not a number n which added to its sum of digits gives 28243102086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28243102087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160650 + ... + 1184733.

It is an arithmetic number, because the mean of its divisors is an integer number (1970122560).

Almost surely, 2^28243102086 is an apocalyptic number.

28243102086 is an abundant number, since it is smaller than the sum of its proper divisors (34800819834).

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

28243102086 is a wasteful number, since it uses less digits than its factorization.

28243102086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345617 (or 2345611 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 28243102086 in words is "twenty-eight billion, two hundred forty-three million, one hundred two thousand, eighty-six".