28965934435 has 16 divisors (see below), whose sum is σ = 36645177600. Its totient is φ = 21919152096.

The previous prime is 28965934433. The next prime is 28965934453. The reversal of 28965934435 is 53443956982.

It is not a de Polignac number, because 28965934435 - 2¹ = 28965934433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28965934435.

It is not an unprimeable number, because it can be changed into a prime (28965934433) 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 15 ways as a sum of consecutive naturals, for example, 174165 + ... + 297094.

It is an arithmetic number, because the mean of its divisors is an integer number (2290323600).

Almost surely, 2^28965934435 is an apocalyptic number.

28965934435 is a deficient number, since it is larger than the sum of its proper divisors (7679243165).

28965934435 is a wasteful number, since it uses less digits than its factorization.

28965934435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471930.

The product of its digits is 27993600, while the sum is 58.

The spelling of 28965934435 in words is "twenty-eight billion, nine hundred sixty-five million, nine hundred thirty-four thousand, four hundred thirty-five".