28577867798 has 8 divisors (see below), whose sum is σ = 43409419680. Its totient is φ = 14108061240.

The previous prime is 28577867789. The next prime is 28577867803. The reversal of 28577867798 is 89776877582.

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 90436133 + ... + 90436448.

It is an arithmetic number, because the mean of its divisors is an integer number (5426177460).

Almost surely, 2^28577867798 is an apocalyptic number.

28577867798 is a deficient number, since it is larger than the sum of its proper divisors (14831551882).

28577867798 is a wasteful number, since it uses less digits than its factorization.

28577867798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180872662.

The product of its digits is 663828480, while the sum is 74.

The spelling of 28577867798 in words is "twenty-eight billion, five hundred seventy-seven million, eight hundred sixty-seven thousand, seven hundred ninety-eight".