28741724435 has 4 divisors (see below), whose sum is σ = 34490069328. Its totient is φ = 22993379544.

The previous prime is 28741724423. The next prime is 28741724467. The reversal of 28741724435 is 53442714782.

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 28741724435 - 2¹⁸ = 28741462291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28741724435.

It is an unprimeable number.

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, 2874172439 + ... + 2874172448.

It is an arithmetic number, because the mean of its divisors is an integer number (8622517332).

Almost surely, 2^28741724435 is an apocalyptic number.

28741724435 is a deficient number, since it is larger than the sum of its proper divisors (5748344893).

28741724435 is an equidigital number, since it uses as much as digits as its factorization.

28741724435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748344892.

The product of its digits is 1505280, while the sum is 47.

The spelling of 28741724435 in words is "twenty-eight billion, seven hundred forty-one million, seven hundred twenty-four thousand, four hundred thirty-five".