28056111417 has 12 divisors (see below), whose sum is σ = 42658415280. Its totient is φ = 17719649208.

The previous prime is 28056111383. The next prime is 28056111431. The reversal of 28056111417 is 71411165082.

28056111417 is a `hidden beast` number, since 2 + 80 + 56 + 111 + 417 = 666.

It is not a de Polignac number, because 28056111417 - 2²⁶ = 27989002553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28056111497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82035243 + ... + 82035584.

It is an arithmetic number, because the mean of its divisors is an integer number (3554867940).

Almost surely, 2^28056111417 is an apocalyptic number.

It is an amenable number.

28056111417 is a deficient number, since it is larger than the sum of its proper divisors (14602303863).

28056111417 is a wasteful number, since it uses less digits than its factorization.

28056111417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164070852 (or 164070849 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

Adding to 28056111417 its reverse (71411165082), we get a palindrome (99467276499).

The spelling of 28056111417 in words is "twenty-eight billion, fifty-six million, one hundred eleven thousand, four hundred seventeen".