28773547823 has 2 divisors, whose sum is σ = 28773547824. Its totient is φ = 28773547822.

The previous prime is 28773547811. The next prime is 28773547841. The reversal of 28773547823 is 32874537782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28773547823 - 2¹⁴ = 28773531439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28773544823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14386773911 + 14386773912.

It is an arithmetic number, because the mean of its divisors is an integer number (14386773912).

Almost surely, 2^28773547823 is an apocalyptic number.

28773547823 is a deficient number, since it is larger than the sum of its proper divisors (1).

28773547823 is an equidigital number, since it uses as much as digits as its factorization.

28773547823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15805440, while the sum is 56.

The spelling of 28773547823 in words is "twenty-eight billion, seven hundred seventy-three million, five hundred forty-seven thousand, eight hundred twenty-three".