28533871222 has 4 divisors (see below), whose sum is σ = 42800806836. Its totient is φ = 14266935610.

The previous prime is 28533871193. The next prime is 28533871253. The reversal of 28533871222 is 22217833582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133467804 + ... + 7133467807.

It is an arithmetic number, because the mean of its divisors is an integer number (10700201709).

Almost surely, 2^28533871222 is an apocalyptic number.

28533871222 is a deficient number, since it is larger than the sum of its proper divisors (14266935614).

28533871222 is a wasteful number, since it uses less digits than its factorization.

28533871222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266935613.

The product of its digits is 322560, while the sum is 43.

The spelling of 28533871222 in words is "twenty-eight billion, five hundred thirty-three million, eight hundred seventy-one thousand, two hundred twenty-two".