8162535728 has 20 divisors (see below), whose sum is σ = 15919652208. Its totient is φ = 4054238400.

The previous prime is 8162535659. The next prime is 8162535739. The reversal of 8162535728 is 8275352618.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686851 + ... + 1691682.

Almost surely, 2^8162535728 is an apocalyptic number.

It is an amenable number.

8162535728 is a deficient number, since it is larger than the sum of its proper divisors (7757116480).

8162535728 is a wasteful number, since it uses less digits than its factorization.

8162535728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378692 (or 3378686 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 8162535728 is about 90346.7527252640. The cubic root of 8162535728 is about 2013.4539368519.

The spelling of 8162535728 in words is "eight billion, one hundred sixty-two million, five hundred thirty-five thousand, seven hundred twenty-eight".