28528232336 has 20 divisors (see below), whose sum is σ = 55843282572. Its totient is φ = 14117062656.

The previous prime is 28528232323. The next prime is 28528232353. The reversal of 28528232336 is 63323282582.

It can be written as a sum of positive squares in 2 ways, for example, as 7635264400 + 20892967936 = 87380^2 + 144544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9189245 + ... + 9192348.

Almost surely, 2^28528232336 is an apocalyptic number.

It is an amenable number.

28528232336 is a deficient number, since it is larger than the sum of its proper divisors (27315050236).

28528232336 is a wasteful number, since it uses less digits than its factorization.

28528232336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18381698 (or 18381692 counting only the distinct ones).

The product of its digits is 829440, while the sum is 44.

The spelling of 28528232336 in words is "twenty-eight billion, five hundred twenty-eight million, two hundred thirty-two thousand, three hundred thirty-six".