28033561732 has 24 divisors (see below), whose sum is σ = 53530001280. Its totient is φ = 12739817760.

The previous prime is 28033561711. The next prime is 28033561739. The reversal of 28033561732 is 23716533082.

It is not an unprimeable number, because it can be changed into a prime (28033561739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149269 + ... + 279907.

It is an arithmetic number, because the mean of its divisors is an integer number (2230416720).

Almost surely, 2^28033561732 is an apocalyptic number.

28033561732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28033561732 is a deficient number, since it is larger than the sum of its proper divisors (25496439548).

28033561732 is a wasteful number, since it uses less digits than its factorization.

28033561732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135531 (or 135529 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 28033561732 in words is "twenty-eight billion, thirty-three million, five hundred sixty-one thousand, seven hundred thirty-two".