28381322711 has 8 divisors (see below), whose sum is σ = 32447326080. Its totient is φ = 24318201528.

The previous prime is 28381322699. The next prime is 28381322731. The reversal of 28381322711 is 11722318382.

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

It is a cyclic number.

It is not a de Polignac number, because 28381322711 - 2²² = 28377128407 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 (28381322731) 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, 699401 + ... + 738866.

It is an arithmetic number, because the mean of its divisors is an integer number (4055915760).

Almost surely, 2^28381322711 is an apocalyptic number.

28381322711 is a deficient number, since it is larger than the sum of its proper divisors (4066003369).

28381322711 is a wasteful number, since it uses less digits than its factorization.

28381322711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441093.

The product of its digits is 32256, while the sum is 38.

The spelling of 28381322711 in words is "twenty-eight billion, three hundred eighty-one million, three hundred twenty-two thousand, seven hundred eleven".