28272481423 has 2 divisors, whose sum is σ = 28272481424. Its totient is φ = 28272481422.

The previous prime is 28272481421. The next prime is 28272481451. The reversal of 28272481423 is 32418427282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28272481423 - 2¹ = 28272481421 is a prime.

Together with 28272481421, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28272481423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28272481421) 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 as a sum of consecutive naturals, namely, 14136240711 + 14136240712.

It is an arithmetic number, because the mean of its divisors is an integer number (14136240712).

Almost surely, 2^28272481423 is an apocalyptic number.

28272481423 is a deficient number, since it is larger than the sum of its proper divisors (1).

28272481423 is an equidigital number, since it uses as much as digits as its factorization.

28272481423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 43.

The spelling of 28272481423 in words is "twenty-eight billion, two hundred seventy-two million, four hundred eighty-one thousand, four hundred twenty-three".