19828852229864 has 16 divisors (see below), whose sum is σ = 37197207605220. Its totient is φ = 9909596868480.

The previous prime is 19828852229833. The next prime is 19828852229891. The reversal of 19828852229864 is 46892225882891.

It can be written as a sum of positive squares in 2 ways, for example, as 16974746081764 + 2854106148100 = 4120042^2 + 1689410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19828852229791 and 19828852229800.

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, 603638357 + ... + 603671204.

Almost surely, 2^{19828852229864} is an apocalyptic number.

It is an amenable number.

19828852229864 is a deficient number, since it is larger than the sum of its proper divisors (17368355375356).

19828852229864 is a wasteful number, since it uses less digits than its factorization.

19828852229864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207311620 (or 1207311616 counting only the distinct ones).

The product of its digits is 637009920, while the sum is 74.

The spelling of 19828852229864 in words is "nineteen trillion, eight hundred twenty-eight billion, eight hundred fifty-two million, two hundred twenty-nine thousand, eight hundred sixty-four".