28033755387 has 16 divisors (see below), whose sum is σ = 41267657088. Its totient is φ = 16785452480.

The previous prime is 28033755383. The next prime is 28033755401. The reversal of 28033755387 is 78355733082.

It is a cyclic number.

It is not a de Polignac number, because 28033755387 - 2² = 28033755383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28033755383) 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 15 ways as a sum of consecutive naturals, for example, 5114778 + ... + 5120255.

It is an arithmetic number, because the mean of its divisors is an integer number (2579228568).

Almost surely, 2^28033755387 is an apocalyptic number.

28033755387 is a deficient number, since it is larger than the sum of its proper divisors (13233901701).

28033755387 is a wasteful number, since it uses less digits than its factorization.

28033755387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235130.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 28033755387 in words is "twenty-eight billion, thirty-three million, seven hundred fifty-five thousand, three hundred eighty-seven".