169728896812 has 6 divisors (see below), whose sum is σ = 297025569428. Its totient is φ = 84864448404.

The previous prime is 169728896759. The next prime is 169728896863. The reversal of 169728896812 is 218698827961.

169728896812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21216112098 + ... + 21216112105.

Almost surely, 2^169728896812 is an apocalyptic number.

It is an amenable number.

169728896812 is a deficient number, since it is larger than the sum of its proper divisors (127296672616).

169728896812 is a wasteful number, since it uses less digits than its factorization.

169728896812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42432224207 (or 42432224205 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 67.

The spelling of 169728896812 in words is "one hundred sixty-nine billion, seven hundred twenty-eight million, eight hundred ninety-six thousand, eight hundred twelve".