28810024045009 has 9 divisors (see below), whose sum is σ = 29179753618953. Its totient is φ = 28444921531572.

The previous prime is 28810024044961. The next prime is 28810024045021. The reversal of 28810024045009 is 90054042001882.

The square root of 28810024045009 is 5367497.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 28810024045009 - 2¹⁹ = 28810023520721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28810024045069) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 423998292 + ... + 424066234.

Almost surely, 2^{28810024045009} is an apocalyptic number.

28810024045009 is the 5367497-th square number.

28810024045009 is the 2683749-th centered octagonal number.

It is an amenable number.

28810024045009 is a deficient number, since it is larger than the sum of its proper divisors (369729573944).

28810024045009 is an frugal number, since it uses more digits than its factorization.

28810024045009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136044 (or 68022 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 28810024045009 in words is "twenty-eight trillion, eight hundred ten billion, twenty-four million, forty-five thousand, nine".