28502753530 has 32 divisors (see below), whose sum is σ = 54508548240. Its totient is φ = 10710443520.

The previous prime is 28502753509. The next prime is 28502753549. The reversal of 28502753530 is 3535720582.

It can be written as a sum of positive squares in 8 ways, for example, as 21316292001 + 7186461529 = 146001^2 + 84773^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1317451 + ... + 1338910.

Almost surely, 2^28502753530 is an apocalyptic number.

28502753530 is a deficient number, since it is larger than the sum of its proper divisors (26005794710).

28502753530 is a wasteful number, since it uses less digits than its factorization.

28502753530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656434.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 28502753530 in words is "twenty-eight billion, five hundred two million, seven hundred fifty-three thousand, five hundred thirty".