28605838235 has 24 divisors (see below), whose sum is σ = 38452443120. Its totient is φ = 20395869312.

The previous prime is 28605838229. The next prime is 28605838237. The reversal of 28605838235 is 53283850682.

It is not a de Polignac number, because 28605838235 - 2³² = 24310870939 is a prime.

It is a super-2 number, since 2×28605838235² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28605838237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559169 + ... + 608178.

It is an arithmetic number, because the mean of its divisors is an integer number (1602185130).

Almost surely, 2^28605838235 is an apocalyptic number.

28605838235 is a deficient number, since it is larger than the sum of its proper divisors (9846604885).

28605838235 is a wasteful number, since it uses less digits than its factorization.

28605838235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167407 (or 1167394 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 28605838235 in words is "twenty-eight billion, six hundred five million, eight hundred thirty-eight thousand, two hundred thirty-five".