28388113586271 has 12 divisors (see below), whose sum is σ = 41010490670760. Its totient is φ = 18922899343920.

The previous prime is 28388113586243. The next prime is 28388113586299. The reversal of 28388113586271 is 17268531188382.

28388113586271 is a `hidden beast` number, since 2 + 8 + 3 + 8 + 8 + 1 + 1 + 358 + 6 + 271 = 666.

It is an interprime number because it is at equal distance from previous prime (28388113586243) and next prime (28388113586299).

It is not a de Polignac number, because 28388113586271 - 2¹¹ = 28388113584223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28388113586199 and 28388113586208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28388113586971) 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, 209071161 + ... + 209206898.

It is an arithmetic number, because the mean of its divisors is an integer number (3417540889230).

Almost surely, 2^{28388113586271} is an apocalyptic number.

28388113586271 is a deficient number, since it is larger than the sum of its proper divisors (12622377084489).

28388113586271 is a wasteful number, since it uses less digits than its factorization.

28388113586271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418285606 (or 418285603 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 28388113586271 in words is "twenty-eight trillion, three hundred eighty-eight billion, one hundred thirteen million, five hundred eighty-six thousand, two hundred seventy-one".