28285430417 has 8 divisors (see below), whose sum is σ = 28646538240. Its totient is φ = 27924399360.

The previous prime is 28285430413. The next prime is 28285430423. The reversal of 28285430417 is 71403458282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28285430417 - 2² = 28285430413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28285430413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268192 + ... + 1290302.

It is an arithmetic number, because the mean of its divisors is an integer number (3580817280).

Almost surely, 2^28285430417 is an apocalyptic number.

It is an amenable number.

28285430417 is a deficient number, since it is larger than the sum of its proper divisors (361107823).

28285430417 is a wasteful number, since it uses less digits than its factorization.

28285430417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38383.

The product of its (nonzero) digits is 430080, while the sum is 44.

Adding to 28285430417 its reverse (71403458282), we get a palindrome (99688888699).

The spelling of 28285430417 in words is "twenty-eight billion, two hundred eighty-five million, four hundred thirty thousand, four hundred seventeen".