2028169493568 has 84 divisors (see below), whose sum is σ = 5843818526208. Its totient is φ = 672516898560.

The previous prime is 2028169493513. The next prime is 2028169493591. The reversal of 2028169493568 is 8653949618202.

2028169493568 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 1 + 69 + 4 + 9 + 3 + 568 = 666.

It is a super-2 number, since 2×2028169493568² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9107596 + ... + 9327627.

Almost surely, 2^{2028169493568} is an apocalyptic number.

It is an amenable number.

2028169493568 is an abundant number, since it is smaller than the sum of its proper divisors (3815649032640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2028169493568 is a wasteful number, since it uses less digits than its factorization.

2028169493568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18435432 (or 18435419 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 2028169493568 in words is "two trillion, twenty-eight billion, one hundred sixty-nine million, four hundred ninety-three thousand, five hundred sixty-eight".