28546398543 has 32 divisors (see below), whose sum is σ = 42521149440. Its totient is φ = 16921532160.

The previous prime is 28546398541. The next prime is 28546398563. The reversal of 28546398543 is 34589364582.

It is not a de Polignac number, because 28546398543 - 2¹ = 28546398541 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28546398541) 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 31 ways as a sum of consecutive naturals, for example, 13330 + ... + 239312.

It is an arithmetic number, because the mean of its divisors is an integer number (1328785920).

Almost surely, 2^28546398543 is an apocalyptic number.

28546398543 is a deficient number, since it is larger than the sum of its proper divisors (13974750897).

28546398543 is a wasteful number, since it uses less digits than its factorization.

28546398543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226119.

The product of its digits is 24883200, while the sum is 57.

The spelling of 28546398543 in words is "twenty-eight billion, five hundred forty-six million, three hundred ninety-eight thousand, five hundred forty-three".