28620026204 has 24 divisors (see below), whose sum is σ = 62443694208. Its totient is φ = 11150659440.

The previous prime is 28620026161. The next prime is 28620026207. The reversal of 28620026204 is 40262002682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28620026207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46460774 + ... + 46461389.

It is an arithmetic number, because the mean of its divisors is an integer number (2601820592).

Almost surely, 2^28620026204 is an apocalyptic number.

It is an amenable number.

28620026204 is an abundant number, since it is smaller than the sum of its proper divisors (33823668004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28620026204 is a wasteful number, since it uses less digits than its factorization.

28620026204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92922185 (or 92922183 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 28620026204 its reverse (40262002682), we get a palindrome (68882028886).

The spelling of 28620026204 in words is "twenty-eight billion, six hundred twenty million, twenty-six thousand, two hundred four".