28350543844 has 24 divisors (see below), whose sum is σ = 56832668928. Its totient is φ = 12122037120.

The previous prime is 28350543841. The next prime is 28350543847. The reversal of 28350543844 is 44834505382.

It is an interprime number because it is at equal distance from previous prime (28350543841) and next prime (28350543847).

It is a junction number, because it is equal to n+sod(n) for n = 28350543794 and 28350543803.

It is not an unprimeable number, because it can be changed into a prime (28350543841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162549 + ... + 1186684.

It is an arithmetic number, because the mean of its divisors is an integer number (2368027872).

Almost surely, 2^28350543844 is an apocalyptic number.

It is an amenable number.

28350543844 is an abundant number, since it is smaller than the sum of its proper divisors (28482125084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28350543844 is a wasteful number, since it uses less digits than its factorization.

28350543844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349675 (or 2349673 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 28350543844 in words is "twenty-eight billion, three hundred fifty million, five hundred forty-three thousand, eight hundred forty-four".