28741408573 has 4 divisors (see below), whose sum is σ = 29087690688. Its totient is φ = 28395126460.

The previous prime is 28741408561. The next prime is 28741408607. The reversal of 28741408573 is 37580414782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28741408573 - 2⁹ = 28741408061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741408873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173140933 + ... + 173141098.

It is an arithmetic number, because the mean of its divisors is an integer number (7271922672).

Almost surely, 2^28741408573 is an apocalyptic number.

It is an amenable number.

28741408573 is a deficient number, since it is larger than the sum of its proper divisors (346282115).

28741408573 is an equidigital number, since it uses as much as digits as its factorization.

28741408573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346282114.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 28741408573 in words is "twenty-eight billion, seven hundred forty-one million, four hundred eight thousand, five hundred seventy-three".