28965895318129 has 32 divisors (see below), whose sum is σ = 36331057308672. Its totient is φ = 22435110600000.

The previous prime is 28965895318097. The next prime is 28965895318133. The reversal of 28965895318129 is 92181359856982.

It is not a de Polignac number, because 28965895318129 - 2⁵ = 28965895318097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28965895312129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7963359 + ... + 11015755.

It is an arithmetic number, because the mean of its divisors is an integer number (1135345540896).

Almost surely, 2^{28965895318129} is an apocalyptic number.

It is an amenable number.

28965895318129 is a deficient number, since it is larger than the sum of its proper divisors (7365161990543).

28965895318129 is a wasteful number, since it uses less digits than its factorization.

28965895318129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053157.

The product of its digits is 671846400, while the sum is 76.

The spelling of 28965895318129 in words is "twenty-eight trillion, nine hundred sixty-five billion, eight hundred ninety-five million, three hundred eighteen thousand, one hundred twenty-nine".