2168718528 has 28 divisors (see below), whose sum is σ = 5738068280. Its totient is φ = 722906112.

The previous prime is 2168718527. The next prime is 2168718551. The reversal of 2168718528 is 8258178612.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2168718521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5647513 + ... + 5647896.

It is an arithmetic number, because the mean of its divisors is an integer number (204931010).

Almost surely, 2^2168718528 is an apocalyptic number.

It is an amenable number.

2168718528 is an abundant number, since it is smaller than the sum of its proper divisors (3569349752).

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

2168718528 is a wasteful number, since it uses less digits than its factorization.

2168718528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295424 (or 11295414 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The square root of 2168718528 is about 46569.5021231707. The cubic root of 2168718528 is about 1294.3976921112.

The spelling of 2168718528 in words is "two billion, one hundred sixty-eight million, seven hundred eighteen thousand, five hundred twenty-eight".