28648828543 has 8 divisors (see below), whose sum is σ = 29898059616. Its totient is φ = 27399900000.

The previous prime is 28648828471. The next prime is 28648828573. The reversal of 28648828543 is 34582884682.

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

It is not a de Polignac number, because 28648828543 - 2²¹ = 28646731391 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 (28648828573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129793 + ... + 272293.

It is an arithmetic number, because the mean of its divisors is an integer number (3737257452).

Almost surely, 2^28648828543 is an apocalyptic number.

28648828543 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28648828543 is a deficient number, since it is larger than the sum of its proper divisors (1249231073).

28648828543 is a wasteful number, since it uses less digits than its factorization.

28648828543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151265.

The product of its digits is 23592960, while the sum is 58.

The spelling of 28648828543 in words is "twenty-eight billion, six hundred forty-eight million, eight hundred twenty-eight thousand, five hundred forty-three".