28409094066 has 8 divisors (see below), whose sum is σ = 56818188144. Its totient is φ = 9469698020.

The previous prime is 28409094037. The next prime is 28409094067. The reversal of 28409094066 is 66049090482.

It is a sphenic number, since it is the product of 3 distinct primes.

28409094066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28409094067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2367424500 + ... + 2367424511.

It is an arithmetic number, because the mean of its divisors is an integer number (7102273518).

Almost surely, 2^28409094066 is an apocalyptic number.

28409094066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28409094066 is a wasteful number, since it uses less digits than its factorization.

28409094066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734849016.

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 28409094066 in words is "twenty-eight billion, four hundred nine million, ninety-four thousand, sixty-six".