28086389124 has 12 divisors (see below), whose sum is σ = 65534907984. Its totient is φ = 9362129704.

The previous prime is 28086389113. The next prime is 28086389131. The reversal of 28086389124 is 42198368082.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170266202 + ... + 1170266225.

It is an arithmetic number, because the mean of its divisors is an integer number (5461242332).

Almost surely, 2^28086389124 is an apocalyptic number.

It is an amenable number.

28086389124 is an abundant number, since it is smaller than the sum of its proper divisors (37448518860).

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

28086389124 is a wasteful number, since it uses less digits than its factorization.

28086389124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340532434 (or 2340532432 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 28086389124 in words is "twenty-eight billion, eighty-six million, three hundred eighty-nine thousand, one hundred twenty-four".