28769896783 has 4 divisors (see below), whose sum is σ = 28771661848. Its totient is φ = 28768131720.

The previous prime is 28769896751. The next prime is 28769896819. The reversal of 28769896783 is 38769896782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38769896782 = 2 ⋅19384948391.

It is a cyclic number.

It is not a de Polignac number, because 28769896783 - 2⁵ = 28769896751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28769896703) 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, 857853 + ... + 890758.

It is an arithmetic number, because the mean of its divisors is an integer number (7192915462).

Almost surely, 2^28769896783 is an apocalyptic number.

28769896783 is a deficient number, since it is larger than the sum of its proper divisors (1765065).

28769896783 is a wasteful number, since it uses less digits than its factorization.

28769896783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765064.

The product of its digits is 438939648, while the sum is 73.

Subtracting 28769896783 from its reverse (38769896782), we obtain a palindrome (9999999999).

The spelling of 28769896783 in words is "twenty-eight billion, seven hundred sixty-nine million, eight hundred ninety-six thousand, seven hundred eighty-three".