28240446864009 has 8 divisors (see below), whose sum is σ = 37654263417600. Its totient is φ = 18826797443216.

The previous prime is 28240446863953. The next prime is 28240446864083. The reversal of 28240446864009 is 90046864404282.

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

It is a cyclic number.

It is not a de Polignac number, because 28240446864009 - 2⁸ = 28240446863753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28240446864009.

It is not an unprimeable number, because it can be changed into a prime (28240446865009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41388402 + ... + 42065195.

It is an arithmetic number, because the mean of its divisors is an integer number (4706782927200).

Almost surely, 2^{28240446864009} is an apocalyptic number.

It is an amenable number.

28240446864009 is a deficient number, since it is larger than the sum of its proper divisors (9413816553591).

28240446864009 is a wasteful number, since it uses less digits than its factorization.

28240446864009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83566399.

The product of its (nonzero) digits is 21233664, while the sum is 57.

The spelling of 28240446864009 in words is "twenty-eight trillion, two hundred forty billion, four hundred forty-six million, eight hundred sixty-four thousand, nine".