28386517135 has 12 divisors (see below), whose sum is σ = 34314389928. Its totient is φ = 22543378496.

The previous prime is 28386517111. The next prime is 28386517153. The reversal of 28386517135 is 53171568382.

It is not a de Polignac number, because 28386517135 - 2⁹ = 28386516623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57397 + ... + 245086.

It is an arithmetic number, because the mean of its divisors is an integer number (2859532494).

Almost surely, 2^28386517135 is an apocalyptic number.

28386517135 is a deficient number, since it is larger than the sum of its proper divisors (5927872793).

28386517135 is an equidigital number, since it uses as much as digits as its factorization.

28386517135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302762 (or 302625 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 49.

The spelling of 28386517135 in words is "twenty-eight billion, three hundred eighty-six million, five hundred seventeen thousand, one hundred thirty-five".