28502830226 has 16 divisors (see below), whose sum is σ = 46054575000. Its totient is φ = 13151854848.

The previous prime is 28502830211. The next prime is 28502830229. The reversal of 28502830226 is 62203820582.

It can be written as a sum of positive squares in 4 ways, for example, as 10250550025 + 18252280201 = 101245^2 + 135101^2 .

It is a super-2 number, since 2×28502830226² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28502830226.

It is not an unprimeable number, because it can be changed into a prime (28502830229) 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 7 ways as a sum of consecutive naturals, for example, 30101 + ... + 240648.

Almost surely, 2^28502830226 is an apocalyptic number.

28502830226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28502830226 is a deficient number, since it is larger than the sum of its proper divisors (17551744774).

28502830226 is a wasteful number, since it uses less digits than its factorization.

28502830226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274813.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 28502830226 in words is "twenty-eight billion, five hundred two million, eight hundred thirty thousand, two hundred twenty-six".