20084349171609 has 12 divisors (see below), whose sum is σ = 29013298828800. Its totient is φ = 13388378923224.

The previous prime is 20084349171581. The next prime is 20084349171613. The reversal of 20084349171609 is 90617194348002.

20084349171609 is a `hidden beast` number, since 2 + 0 + 0 + 84 + 3 + 491 + 71 + 6 + 0 + 9 = 666.

It is not a de Polignac number, because 20084349171609 - 2²⁴ = 20084332394393 is a prime.

It is a super-2 number, since 2×20084349171609² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20084349121609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98825449 + ... + 99028470.

It is an arithmetic number, because the mean of its divisors is an integer number (2417774902400).

Almost surely, 2^{20084349171609} is an apocalyptic number.

It is an amenable number.

20084349171609 is a deficient number, since it is larger than the sum of its proper divisors (8928949657191).

20084349171609 is a wasteful number, since it uses less digits than its factorization.

20084349171609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197865204 (or 197865201 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 20084349171609 in words is "twenty trillion, eighty-four billion, three hundred forty-nine million, one hundred seventy-one thousand, six hundred nine".