28934115841 has 4 divisors (see below), whose sum is σ = 28942061872. Its totient is φ = 28926169812.

The previous prime is 28934115839. The next prime is 28934115869. The reversal of 28934115841 is 14851143982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28934115841 - 2¹ = 28934115839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28934115791 and 28934115800.

It is not an unprimeable number, because it can be changed into a prime (28934115871) 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, 3967551 + ... + 3974836.

It is an arithmetic number, because the mean of its divisors is an integer number (7235515468).

Almost surely, 2^28934115841 is an apocalyptic number.

It is an amenable number.

28934115841 is a deficient number, since it is larger than the sum of its proper divisors (7946031).

28934115841 is an equidigital number, since it uses as much as digits as its factorization.

28934115841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946030.

The product of its digits is 276480, while the sum is 46.

The spelling of 28934115841 in words is "twenty-eight billion, nine hundred thirty-four million, one hundred fifteen thousand, eight hundred forty-one".