28418791344423 has 32 divisors (see below), whose sum is σ = 39206233930752. Its totient is φ = 18298141286400.

The previous prime is 28418791344421. The next prime is 28418791344443. The reversal of 28418791344423 is 32444319781482.

It is not a de Polignac number, because 28418791344423 - 2¹ = 28418791344421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28418791344421) 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, 17969383 + ... + 19486823.

It is an arithmetic number, because the mean of its divisors is an integer number (1225194810336).

Almost surely, 2^{28418791344423} is an apocalyptic number.

28418791344423 is a deficient number, since it is larger than the sum of its proper divisors (10787442586329).

28418791344423 is a wasteful number, since it uses less digits than its factorization.

28418791344423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519015.

The product of its digits is 37158912, while the sum is 60.

The spelling of 28418791344423 in words is "twenty-eight trillion, four hundred eighteen billion, seven hundred ninety-one million, three hundred forty-four thousand, four hundred twenty-three".