28285018048 has 56 divisors (see below), whose sum is σ = 64246182912. Its totient is φ = 12103290624.

The previous prime is 28285018007. The next prime is 28285018057. The reversal of 28285018048 is 84081058282.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 28285017989 and 28285018007.

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, 241065 + ... + 338647.

Almost surely, 2^28285018048 is an apocalyptic number.

28285018048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28285018048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32123091456).

28285018048 is an abundant number, since it is smaller than the sum of its proper divisors (35961164864).

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

28285018048 is an equidigital number, since it uses as much as digits as its factorization.

28285018048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98249 (or 98239 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 46.

The spelling of 28285018048 in words is "twenty-eight billion, two hundred eighty-five million, eighteen thousand, forty-eight".