169428834199 has 4 divisors (see below), whose sum is σ = 169431615936. Its totient is φ = 169426052464.

The previous prime is 169428834191. The next prime is 169428834259. The reversal of 169428834199 is 991438824961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 169428834199 - 2³ = 169428834191 is a prime.

It is a super-2 number, since 2×169428834199² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169428834199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169428834191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297414 + ... + 1422019.

It is an arithmetic number, because the mean of its divisors is an integer number (42357903984).

Almost surely, 2^169428834199 is an apocalyptic number.

169428834199 is a deficient number, since it is larger than the sum of its proper divisors (2781737).

169428834199 is an equidigital number, since it uses as much as digits as its factorization.

169428834199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781736.

The product of its digits is 26873856, while the sum is 64.

The spelling of 169428834199 in words is "one hundred sixty-nine billion, four hundred twenty-eight million, eight hundred thirty-four thousand, one hundred ninety-nine".