28552313211 has 8 divisors (see below), whose sum is σ = 38207187984. Its totient is φ = 18966156960.

The previous prime is 28552313189. The next prime is 28552313221. The reversal of 28552313211 is 11231325582.

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

It is not a de Polignac number, because 28552313211 - 2¹¹ = 28552311163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28552313221) 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, 17178660 + ... + 17180321.

It is an arithmetic number, because the mean of its divisors is an integer number (4775898498).

Almost surely, 2^28552313211 is an apocalyptic number.

28552313211 is a deficient number, since it is larger than the sum of its proper divisors (9654874773).

28552313211 is a wasteful number, since it uses less digits than its factorization.

28552313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34359261.

The product of its digits is 14400, while the sum is 33.

Adding to 28552313211 its reverse (11231325582), we get a palindrome (39783638793).

The spelling of 28552313211 in words is "twenty-eight billion, five hundred fifty-two million, three hundred thirteen thousand, two hundred eleven".