3469885994169 has 81 divisors (see below), whose sum is σ = 5892459081327. Its totient is φ = 1961891795808.

The previous prime is 3469885994167. The next prime is 3469885994177. The reversal of 3469885994169 is 9614995889643.

The square root of 3469885994169 is 1862763.

It is a perfect power (a square), and thus also a powerful number.

3469885994169 is a `hidden beast` number, since 3 + 4 + 6 + 9 + 8 + 8 + 599 + 4 + 16 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1997594969769 + 1472291024400 = 1413363^2 + 1213380^2 .

It is not a de Polignac number, because 3469885994169 - 2¹ = 3469885994167 is a prime.

It is a super-3 number, since 3×3469885994169³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3469885994167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4185628047 + ... + 4185628875.

Almost surely, 2^{3469885994169} is an apocalyptic number.

3469885994169 is the 1862763-rd square number.

3469885994169 is the 931382-nd centered octagonal number.

It is an amenable number.

3469885994169 is a deficient number, since it is larger than the sum of its proper divisors (2422573087158).

3469885994169 is an frugal number, since it uses more digits than its factorization.

3469885994169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 946 counting only the distinct ones).

The product of its digits is 3627970560, while the sum is 81.

Multiplying 3469885994169 by its sum of digits (81), we get a square (281060765527689 = 16764867²).

The spelling of 3469885994169 in words is "three trillion, four hundred sixty-nine billion, eight hundred eighty-five million, nine hundred ninety-four thousand, one hundred sixty-nine".