28532715841 has 4 divisors (see below), whose sum is σ = 32608818112. Its totient is φ = 24456613572.

The previous prime is 28532715839. The next prime is 28532715847. The reversal of 28532715841 is 14851723582.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28532715841 - 2¹ = 28532715839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28532715791 and 28532715800.

It is not an unprimeable number, because it can be changed into a prime (28532715847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038051125 + ... + 2038051138.

It is an arithmetic number, because the mean of its divisors is an integer number (8152204528).

Almost surely, 2^28532715841 is an apocalyptic number.

It is an amenable number.

28532715841 is a deficient number, since it is larger than the sum of its proper divisors (4076102271).

28532715841 is an equidigital number, since it uses as much as digits as its factorization.

28532715841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076102270.

The product of its digits is 537600, while the sum is 46.

The spelling of 28532715841 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred fifteen thousand, eight hundred forty-one".