28285268727 has 8 divisors (see below), whose sum is σ = 37761615616. Its totient is φ = 18832883832.

The previous prime is 28285268657. The next prime is 28285268741. The reversal of 28285268727 is 72786258282.

It is a happy number.

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

It is not a de Polignac number, because 28285268727 - 2³² = 23990301431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285268747) 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, 5987743 + ... + 5992464.

It is an arithmetic number, because the mean of its divisors is an integer number (4720201952).

Almost surely, 2^28285268727 is an apocalyptic number.

28285268727 is a deficient number, since it is larger than the sum of its proper divisors (9476346889).

28285268727 is a wasteful number, since it uses less digits than its factorization.

28285268727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11980997.

The product of its digits is 12042240, while the sum is 57.

The spelling of 28285268727 in words is "twenty-eight billion, two hundred eighty-five million, two hundred sixty-eight thousand, seven hundred twenty-seven".