28745293883 has 4 divisors (see below), whose sum is σ = 28800256728. Its totient is φ = 28690331040.

The previous prime is 28745293847. The next prime is 28745293891. The reversal of 28745293883 is 38839254782.

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

It is a cyclic number.

It is not a de Polignac number, because 28745293883 - 2⁸ = 28745293627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28745293813) 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 3 ways as a sum of consecutive naturals, for example, 27480638 + ... + 27481683.

It is an arithmetic number, because the mean of its divisors is an integer number (7200064182).

Almost surely, 2^28745293883 is an apocalyptic number.

28745293883 is a deficient number, since it is larger than the sum of its proper divisors (54962845).

28745293883 is an equidigital number, since it uses as much as digits as its factorization.

28745293883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54962844.

The product of its digits is 23224320, while the sum is 59.

The spelling of 28745293883 in words is "twenty-eight billion, seven hundred forty-five million, two hundred ninety-three thousand, eight hundred eighty-three".