28498743488123 has 4 divisors (see below), whose sum is σ = 28792544967480. Its totient is φ = 28204942008768.

The previous prime is 28498743488099. The next prime is 28498743488147. The reversal of 28498743488123 is 32188434789482.

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

It is an interprime number because it is at equal distance from previous prime (28498743488099) and next prime (28498743488147).

It is a cyclic number.

It is not a de Polignac number, because 28498743488123 - 2³² = 28494448520827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28498746488123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146900739533 + ... + 146900739726.

It is an arithmetic number, because the mean of its divisors is an integer number (7198136241870).

Almost surely, 2^{28498743488123} is an apocalyptic number.

28498743488123 is a deficient number, since it is larger than the sum of its proper divisors (293801479357).

28498743488123 is an equidigital number, since it uses as much as digits as its factorization.

28498743488123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293801479356.

The product of its digits is 594542592, while the sum is 71.

The spelling of 28498743488123 in words is "twenty-eight trillion, four hundred ninety-eight billion, seven hundred forty-three million, four hundred eighty-eight thousand, one hundred twenty-three".