28202836033 has 4 divisors (see below), whose sum is σ = 28205647060. Its totient is φ = 28200025008.

The previous prime is 28202836031. The next prime is 28202836043. The reversal of 28202836033 is 33063820282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33063820282 = 2 ⋅16531910141.

It can be written as a sum of positive squares in 2 ways, for example, as 7146504369 + 21056331664 = 84537^2 + 145108^2 .

It is a cyclic number.

It is not a de Polignac number, because 28202836033 - 2¹ = 28202836031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28202835983 and 28202836001.

It is not an unprimeable number, because it can be changed into a prime (28202836031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390410 + ... + 1410547.

It is an arithmetic number, because the mean of its divisors is an integer number (7051411765).

Almost surely, 2^28202836033 is an apocalyptic number.

It is an amenable number.

28202836033 is a deficient number, since it is larger than the sum of its proper divisors (2811027).

28202836033 is a wasteful number, since it uses less digits than its factorization.

28202836033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811026.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 28202836033 in words is "twenty-eight billion, two hundred two million, eight hundred thirty-six thousand, thirty-three".