28413147845 has 4 divisors (see below), whose sum is σ = 34095777420. Its totient is φ = 22730518272.

The previous prime is 28413147823. The next prime is 28413147853. The reversal of 28413147845 is 54874131482.

It is a Cunningham number, because it is equal to 168562²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10228895044 + 18184252801 = 101138^2 + 134849^2 .

It is a cyclic number.

It is not a de Polignac number, because 28413147845 - 2¹⁶ = 28413082309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28413147845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2841314780 + ... + 2841314789.

It is an arithmetic number, because the mean of its divisors is an integer number (8523944355).

Almost surely, 2^28413147845 is an apocalyptic number.

It is an amenable number.

28413147845 is a deficient number, since it is larger than the sum of its proper divisors (5682629575).

28413147845 is an equidigital number, since it uses as much as digits as its factorization.

28413147845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682629574.

The product of its digits is 860160, while the sum is 47.

The spelling of 28413147845 in words is "twenty-eight billion, four hundred thirteen million, one hundred forty-seven thousand, eight hundred forty-five".