28805607417 has 4 divisors (see below), whose sum is σ = 38407476560. Its totient is φ = 19203738276.

The previous prime is 28805607401. The next prime is 28805607427. The reversal of 28805607417 is 71470650882.

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 not a de Polignac number, because 28805607417 - 2⁴ = 28805607401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28805607427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4800934567 + ... + 4800934572.

It is an arithmetic number, because the mean of its divisors is an integer number (9601869140).

Almost surely, 2^28805607417 is an apocalyptic number.

It is an amenable number.

28805607417 is a deficient number, since it is larger than the sum of its proper divisors (9601869143).

28805607417 is an equidigital number, since it uses as much as digits as its factorization.

28805607417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9601869142.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 28805607417 in words is "twenty-eight billion, eight hundred five million, six hundred seven thousand, four hundred seventeen".