28347348041 has 4 divisors (see below), whose sum is σ = 28418040084. Its totient is φ = 28276656000.

The previous prime is 28347347929. The next prime is 28347348047. The reversal of 28347348041 is 14084374382.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26570304016 + 1777044025 = 163004^2 + 42155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28347348041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28347347983 and 28347348001.

It is not an unprimeable number, because it can be changed into a prime (28347348047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35345420 + ... + 35346221.

It is an arithmetic number, because the mean of its divisors is an integer number (7104510021).

Almost surely, 2^28347348041 is an apocalyptic number.

It is an amenable number.

28347348041 is a deficient number, since it is larger than the sum of its proper divisors (70692043).

28347348041 is an equidigital number, since it uses as much as digits as its factorization.

28347348041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70692042.

The product of its (nonzero) digits is 516096, while the sum is 44.

The spelling of 28347348041 in words is "twenty-eight billion, three hundred forty-seven million, three hundred forty-eight thousand, forty-one".