6409349165173 has 2 divisors, whose sum is σ = 6409349165174. Its totient is φ = 6409349165172.

The previous prime is 6409349165099. The next prime is 6409349165201. The reversal of 6409349165173 is 3715619439046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4241923325649 + 2167425839524 = 2059593^2 + 1472218^2 .

It is a cyclic number.

It is not a de Polignac number, because 6409349165173 - 2³⁷ = 6271910211701 is a prime.

It is a super-3 number, since 3×6409349165173³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6409349165473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204674582586 + 3204674582587.

It is an arithmetic number, because the mean of its divisors is an integer number (3204674582587).

Almost surely, 2^{6409349165173} is an apocalyptic number.

It is an amenable number.

6409349165173 is a deficient number, since it is larger than the sum of its proper divisors (1).

6409349165173 is an equidigital number, since it uses as much as digits as its factorization.

6409349165173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 6409349165173 in words is "six trillion, four hundred nine billion, three hundred forty-nine million, one hundred sixty-five thousand, one hundred seventy-three".