28252768058 has 4 divisors (see below), whose sum is σ = 42379152090. Its totient is φ = 14126384028.

The previous prime is 28252768013. The next prime is 28252768073. The reversal of 28252768058 is 85086725282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26421527209 + 1831240849 = 162547^2 + 42793^2 .

It is a super-3 number, since 3×28252768058³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7063192013 + ... + 7063192016.

Almost surely, 2^28252768058 is an apocalyptic number.

28252768058 is a deficient number, since it is larger than the sum of its proper divisors (14126384032).

28252768058 is a wasteful number, since it uses less digits than its factorization.

28252768058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126384031.

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 28252768058 in words is "twenty-eight billion, two hundred fifty-two million, seven hundred sixty-eight thousand, fifty-eight".