28229754113 has 24 divisors (see below), whose sum is σ = 32315409000. Its totient is φ = 24611713280.

The previous prime is 28229754097. The next prime is 28229754143. The reversal of 28229754113 is 31145792282.

It can be written as a sum of positive squares in 4 ways, for example, as 7057176049 + 21172578064 = 84007^2 + 145508^2 .

It is not a de Polignac number, because 28229754113 - 2⁴ = 28229754097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28229754143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495845 + ... + 549837.

It is an arithmetic number, because the mean of its divisors is an integer number (1346475375).

Almost surely, 2^28229754113 is an apocalyptic number.

It is an amenable number.

28229754113 is a deficient number, since it is larger than the sum of its proper divisors (4085654887).

28229754113 is a wasteful number, since it uses less digits than its factorization.

28229754113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54193 (or 54182 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 28229754113 in words is "twenty-eight billion, two hundred twenty-nine million, seven hundred fifty-four thousand, one hundred thirteen".