28026785328 has 20 divisors (see below), whose sum is σ = 72402528888. Its totient is φ = 9342261760.

The previous prime is 28026785321. The next prime is 28026785341. The reversal of 28026785328 is 82358762082.

It is not an unprimeable number, because it can be changed into a prime (28026785321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291945633 + ... + 291945728.

Almost surely, 2^28026785328 is an apocalyptic number.

It is an amenable number.

28026785328 is an abundant number, since it is smaller than the sum of its proper divisors (44375743560).

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

28026785328 is a wasteful number, since it uses less digits than its factorization.

28026785328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583891372 (or 583891366 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 28026785328 in words is "twenty-eight billion, twenty-six million, seven hundred eighty-five thousand, three hundred twenty-eight".