28558097417 has 4 divisors (see below), whose sum is σ = 28570554180. Its totient is φ = 28545640656.

The previous prime is 28558097413. The next prime is 28558097437. The reversal of 28558097417 is 71479085582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71479085582 = 2 ⋅35739542791.

It can be written as a sum of positive squares in 2 ways, for example, as 6296263801 + 22261833616 = 79349^2 + 149204^2 .

It is a cyclic number.

It is not a de Polignac number, because 28558097417 - 2² = 28558097413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28558097413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6224942 + ... + 6229527.

It is an arithmetic number, because the mean of its divisors is an integer number (7142638545).

Almost surely, 2^28558097417 is an apocalyptic number.

It is an amenable number.

28558097417 is a deficient number, since it is larger than the sum of its proper divisors (12456763).

28558097417 is a wasteful number, since it uses less digits than its factorization.

28558097417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456762.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 28558097417 in words is "twenty-eight billion, five hundred fifty-eight million, ninety-seven thousand, four hundred seventeen".