28085928928 has 12 divisors (see below), whose sum is σ = 55294172640. Its totient is φ = 14042964448.

The previous prime is 28085928869. The next prime is 28085928929. The reversal of 28085928928 is 82982958082.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28085928929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438842608 + ... + 438842671.

It is an arithmetic number, because the mean of its divisors is an integer number (4607847720).

Almost surely, 2^28085928928 is an apocalyptic number.

It is an amenable number.

28085928928 is a deficient number, since it is larger than the sum of its proper divisors (27208243712).

28085928928 is an equidigital number, since it uses as much as digits as its factorization.

28085928928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877685289 (or 877685281 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 61.

The spelling of 28085928928 in words is "twenty-eight billion, eighty-five million, nine hundred twenty-eight thousand, nine hundred twenty-eight".