28469795545 has 4 divisors (see below), whose sum is σ = 34163754660. Its totient is φ = 22775836432.

The previous prime is 28469795483. The next prime is 28469795579. The reversal of 28469795545 is 54559796482.

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 11320321609 + 17149473936 = 106397^2 + 130956^2 .

It is a cyclic number.

It is not a de Polignac number, because 28469795545 - 2¹⁵ = 28469762777 is a prime.

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, 2846979550 + ... + 2846979559.

It is an arithmetic number, because the mean of its divisors is an integer number (8540938665).

Almost surely, 2^28469795545 is an apocalyptic number.

It is an amenable number.

28469795545 is a deficient number, since it is larger than the sum of its proper divisors (5693959115).

28469795545 is an equidigital number, since it uses as much as digits as its factorization.

28469795545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693959114.

The product of its digits is 108864000, while the sum is 64.

The spelling of 28469795545 in words is "twenty-eight billion, four hundred sixty-nine million, seven hundred ninety-five thousand, five hundred forty-five".