28342241511 has 4 divisors (see below), whose sum is σ = 37789655352. Its totient is φ = 18894827672.

The previous prime is 28342241483. The next prime is 28342241513. The reversal of 28342241511 is 11514224382.

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

It is a cyclic number.

It is not a de Polignac number, because 28342241511 - 2²⁷ = 28208023783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342241513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4723706916 + ... + 4723706921.

It is an arithmetic number, because the mean of its divisors is an integer number (9447413838).

Almost surely, 2^28342241511 is an apocalyptic number.

28342241511 is a deficient number, since it is larger than the sum of its proper divisors (9447413841).

28342241511 is an equidigital number, since it uses as much as digits as its factorization.

28342241511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9447413840.

The product of its digits is 15360, while the sum is 33.

Adding to 28342241511 its reverse (11514224382), we get a palindrome (39856465893).

The spelling of 28342241511 in words is "twenty-eight billion, three hundred forty-two million, two hundred forty-one thousand, five hundred eleven".