28491241795 has 4 divisors (see below), whose sum is σ = 34189490160. Its totient is φ = 22792993432.

The previous prime is 28491241771. The next prime is 28491241799. The reversal of 28491241795 is 59714219482.

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 28491241795 - 2¹⁷ = 28491110723 is a prime.

It is a super-3 number, since 3×28491241795³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28491241799) 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, 2849124175 + ... + 2849124184.

It is an arithmetic number, because the mean of its divisors is an integer number (8547372540).

Almost surely, 2^28491241795 is an apocalyptic number.

28491241795 is a deficient number, since it is larger than the sum of its proper divisors (5698248365).

28491241795 is an equidigital number, since it uses as much as digits as its factorization.

28491241795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698248364.

The product of its digits is 1451520, while the sum is 52.

The spelling of 28491241795 in words is "twenty-eight billion, four hundred ninety-one million, two hundred forty-one thousand, seven hundred ninety-five".