28573281801 has 12 divisors (see below), whose sum is σ = 41282232628. Its totient is φ = 19044370944.

The previous prime is 28573281713. The next prime is 28573281859. The reversal of 28573281801 is 10818237582.

It can be written as a sum of positive squares in 2 ways, for example, as 2151104400 + 26422177401 = 46380^2 + 162549^2 .

It is not a de Polignac number, because 28573281801 - 2⁷ = 28573281673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28573281871) 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 11 ways as a sum of consecutive naturals, for example, 333040 + ... + 409953.

Almost surely, 2^28573281801 is an apocalyptic number.

It is an amenable number.

28573281801 is a deficient number, since it is larger than the sum of its proper divisors (12708950827).

28573281801 is a wasteful number, since it uses less digits than its factorization.

28573281801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747272 (or 747269 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 28573281801 in words is "twenty-eight billion, five hundred seventy-three million, two hundred eighty-one thousand, eight hundred one".