28574581017 has 4 divisors (see below), whose sum is σ = 38099441360. Its totient is φ = 19049720676.

The previous prime is 28574580989. The next prime is 28574581031. The reversal of 28574581017 is 71018547582.

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 not a de Polignac number, because 28574581017 - 2⁷ = 28574580889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28574581417) 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, 4762430167 + ... + 4762430172.

It is an arithmetic number, because the mean of its divisors is an integer number (9524860340).

Almost surely, 2^28574581017 is an apocalyptic number.

It is an amenable number.

28574581017 is a deficient number, since it is larger than the sum of its proper divisors (9524860343).

28574581017 is an equidigital number, since it uses as much as digits as its factorization.

28574581017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9524860342.

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 28574581017 in words is "twenty-eight billion, five hundred seventy-four million, five hundred eighty-one thousand, seventeen".