28543305634 has 8 divisors (see below), whose sum is σ = 42815940048. Its totient is φ = 14271325620.

The previous prime is 28543305589. The next prime is 28543305649. The reversal of 28543305634 is 43650334582.

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

It is a super-2 number, since 2×28543305634² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34032 + ... + 241339.

It is an arithmetic number, because the mean of its divisors is an integer number (5351992506).

Almost surely, 2^28543305634 is an apocalyptic number.

28543305634 is a deficient number, since it is larger than the sum of its proper divisors (14272634414).

28543305634 is a wasteful number, since it uses less digits than its factorization.

28543305634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327200.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 28543305634 in words is "twenty-eight billion, five hundred forty-three million, three hundred five thousand, six hundred thirty-four".