28965736313 has 4 divisors (see below), whose sum is σ = 28980723108. Its totient is φ = 28950749520.

The previous prime is 28965736253. The next prime is 28965736367. The reversal of 28965736313 is 31363756982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21907552144 + 7058184169 = 148012^2 + 84013^2 .

It is a cyclic number.

It is not a de Polignac number, because 28965736313 - 2⁸ = 28965736057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28965736213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7490498 + ... + 7494363.

It is an arithmetic number, because the mean of its divisors is an integer number (7245180777).

Almost surely, 2^28965736313 is an apocalyptic number.

It is an amenable number.

28965736313 is a deficient number, since it is larger than the sum of its proper divisors (14986795).

28965736313 is a wasteful number, since it uses less digits than its factorization.

28965736313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14986794.

The product of its digits is 4898880, while the sum is 53.

The spelling of 28965736313 in words is "twenty-eight billion, nine hundred sixty-five million, seven hundred thirty-six thousand, three hundred thirteen".