28163075355 has 32 divisors (see below), whose sum is σ = 50145952320. Its totient is φ = 14996828160.

The previous prime is 28163075333. The next prime is 28163075377. The reversal of 28163075355 is 55357036182.

28163075355 is a `hidden beast` number, since 2 + 8 + 1 + 630 + 7 + 5 + 3 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28163075333) and next prime (28163075377).

It is not a de Polignac number, because 28163075355 - 2⁸ = 28163075099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28163075355.

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 31 ways as a sum of consecutive naturals, for example, 76192 + ... + 249261.

It is an arithmetic number, because the mean of its divisors is an integer number (1567061010).

Almost surely, 2^28163075355 is an apocalyptic number.

28163075355 is a deficient number, since it is larger than the sum of its proper divisors (21982876965).

28163075355 is a wasteful number, since it uses less digits than its factorization.

28163075355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326108 (or 326102 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 28163075355 in words is "twenty-eight billion, one hundred sixty-three million, seventy-five thousand, three hundred fifty-five".