28152927811 has 8 divisors (see below), whose sum is σ = 28499430960. Its totient is φ = 27808481568.

The previous prime is 28152927773. The next prime is 28152927821. The reversal of 28152927811 is 11872925182.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28152927811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28152927821) 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, 486676 + ... + 541441.

It is an arithmetic number, because the mean of its divisors is an integer number (3562428870).

Almost surely, 2^28152927811 is an apocalyptic number.

28152927811 is a deficient number, since it is larger than the sum of its proper divisors (346503149).

28152927811 is a wasteful number, since it uses less digits than its factorization.

28152927811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028453.

The product of its digits is 161280, while the sum is 46.

The spelling of 28152927811 in words is "twenty-eight billion, one hundred fifty-two million, nine hundred twenty-seven thousand, eight hundred eleven".