28283666272 has 12 divisors (see below), whose sum is σ = 55683468036. Its totient is φ = 14141833120.

The previous prime is 28283666249. The next prime is 28283666297. The reversal of 28283666272 is 27266638282.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 441932254 + ... + 441932317.

It is an arithmetic number, because the mean of its divisors is an integer number (4640289003).

Almost surely, 2^28283666272 is an apocalyptic number.

It is an amenable number.

28283666272 is a deficient number, since it is larger than the sum of its proper divisors (27399801764).

28283666272 is an equidigital number, since it uses as much as digits as its factorization.

28283666272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883864581 (or 883864573 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 52.

The spelling of 28283666272 in words is "twenty-eight billion, two hundred eighty-three million, six hundred sixty-six thousand, two hundred seventy-two".