28823168545 has 8 divisors (see below), whose sum is σ = 34611947496. Its totient is φ = 23042438016.

The previous prime is 28823168533. The next prime is 28823168567. The reversal of 28823168545 is 54586132882.

It can be written as a sum of positive squares in 4 ways, for example, as 12671554624 + 16151613921 = 112568^2 + 127089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28823168545 - 2⁷ = 28823168417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28823168492 and 28823168501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004222 + ... + 2018551.

It is an arithmetic number, because the mean of its divisors is an integer number (4326493437).

Almost surely, 2^28823168545 is an apocalyptic number.

It is an amenable number.

28823168545 is a deficient number, since it is larger than the sum of its proper divisors (5788778951).

28823168545 is a wasteful number, since it uses less digits than its factorization.

28823168545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024211.

The product of its digits is 3686400, while the sum is 52.

The spelling of 28823168545 in words is "twenty-eight billion, eight hundred twenty-three million, one hundred sixty-eight thousand, five hundred forty-five".