28007575532 has 12 divisors (see below), whose sum is σ = 49014550200. Its totient is φ = 14003418336.

The previous prime is 28007575523. The next prime is 28007575553. The reversal of 28007575532 is 23557570082.

It is an unprimeable number.

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, 147344 + ... + 278792.

It is an arithmetic number, because the mean of its divisors is an integer number (4084545850).

Almost surely, 2^28007575532 is an apocalyptic number.

It is an amenable number.

28007575532 is a deficient number, since it is larger than the sum of its proper divisors (21006974668).

28007575532 is a wasteful number, since it uses less digits than its factorization.

28007575532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184720 (or 184718 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 28007575532 in words is "twenty-eight billion, seven million, five hundred seventy-five thousand, five hundred thirty-two".