28530835348 has 12 divisors (see below), whose sum is σ = 50054730292. Its totient is φ = 14229483840.

The previous prime is 28530835343. The next prime is 28530835349. The reversal of 28530835348 is 84353803582.

It can be written as a sum of positive squares in 2 ways, for example, as 14685077124 + 13845758224 = 121182^2 + 117668^2 .

It is a super-2 number, since 2×28530835348² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28530835343) 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 3 ways as a sum of consecutive naturals, for example, 8981673 + ... + 8984848.

Almost surely, 2^28530835348 is an apocalyptic number.

It is an amenable number.

28530835348 is a deficient number, since it is larger than the sum of its proper divisors (21523894944).

28530835348 is a wasteful number, since it uses less digits than its factorization.

28530835348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966922 (or 17966920 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 28530835348 in words is "twenty-eight billion, five hundred thirty million, eight hundred thirty-five thousand, three hundred forty-eight".